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Buy from Amazon $48.97$1.80 $40.00 $30.00 $20.00 $10.00 Jun Aug Oct Dec Feb Apr Jun Aug Oct Dec Feb Apr 2014 2015 2016 $35.48, Apr 16 - Aug 2$35.48, Apr 16 - Aug 2$28.39, May 3 4:41 pm$17.40, May 3 6:37 am$35.48, Apr 16 - Aug 2$28.09, May 5 6:22 pm$16.75, May 4 - May 5$35.48, Apr 16 - Aug 2$27.89, May 7 2:16 pm$15.84, May 7 - May 8$35.48, Apr 16 - Aug 2$27.68, May 9 5:43 am$15.83, May 9 5:43 am$35.48, Apr 16 - Aug 2$27.52, May 10 - May 11$15.02, May 10 - May 11$35.48, Apr 16 - Aug 2$27.40, May 12 7:27 pm$14.34, May 12 7:27 pm$35.48, Apr 16 - Aug 2$28.99, May 14 - May 19$13.93, May 14 5:09 pm$35.48, Apr 16 - Aug 2$28.99, May 14 - May 19$13.90, May 15 11:41 pm$35.48, Apr 16 - Aug 2$28.99, May 14 - May 19$13.46, May 17 12:25 pm$35.48, Apr 16 - Aug 2$28.99, May 20 - May 21$12.67, May 20 6:37 pm$35.48, Apr 16 - Aug 2$29.00, May 21 - May 22$12.50, May 22 2:05 pm$35.48, Apr 16 - Aug 2$28.99, May 23 - May 27$12.38, May 24 1:41 pm$35.48, Apr 16 - Aug 2$28.99, May 23 - May 27$12.27, May 26 8:53 am$35.48, Apr 16 - Aug 2$29.00, May 28 3:06 am$12.16, May 28 3:06 am$35.48, Apr 16 - Aug 2$28.99, May 30 - May 31$14.27, May 30 - May 31$35.48, Apr 16 - Aug 2$29.00, Jun 1 2:57 am$13.67, Jun 1 - Jun 2$35.48, Apr 16 - Aug 2$28.99, Jun 1 - Jun 3$13.67, Jun 1 - Jun 2$35.48, Apr 16 - Aug 2$29.00, Jun 3 - Jun 4$12.09, Jun 3 - Jun 4$35.48, Apr 16 - Aug 2$28.99, Jun 5 - Jun 6$13.23, Jun 5 11:28 am$35.48, Apr 16 - Aug 2$29.00, Jun 7 - Jun 10$13.12, Jun 8 12:18 pm$35.48, Apr 16 - Aug 2$29.00, Jun 7 - Jun 10$20.99, Jun 9 4:44 am$35.48, Apr 16 - Aug 2$28.99, Jun 11 - Jul 25$18.97, Jun 11 - Jun 12$35.48, Apr 16 - Aug 2$28.99, Jun 11 - Jul 25$18.20, Jun 14 - Jun 15$35.48, Apr 16 - Aug 2$28.99, Jun 11 - Jul 25$17.08, Jun 17 - Jun 18$35.48, Apr 16 - Aug 2$28.99, Jun 11 - Jul 25$16.44, Jun 19 11:31 am$35.48, Apr 16 - Aug 2$28.99, Jun 11 - Jul 25$15.80, Jun 21 - Jun 23$35.48, Apr 16 - Aug 2$28.99, Jun 11 - Jul 25$14.95, Jun 24 1:05 am$35.48, Apr 16 - Aug 2$28.99, Jun 11 - Jul 25$14.66, Jun 26 - Jul 10$35.48, Apr 16 - Aug 2$28.99, Jun 11 - Jul 25$18.84, Jul 12 2:14 am$35.48, Apr 16 - Aug 2$28.99, Jun 11 - Jul 25$18.01, Jul 13 7:48 am$35.48, Apr 16 - Aug 2$28.99, Jun 11 - Jul 25$17.28, Jul 16 1:34 am$35.48, Apr 16 - Aug 2$28.99, Jun 11 - Jul 25$16.91, Jul 17 10:33 am$35.48, Apr 16 - Aug 2$28.99, Jun 11 - Jul 25$16.31, Jul 18 - Jul 19$35.48, Apr 16 - Aug 2$28.99, Jun 11 - Jul 25$15.85, Jul 21 - Aug 7$35.48, Apr 16 - Aug 2$27.00, Jul 26 - Jul 27$15.85, Jul 21 - Aug 7$35.48, Apr 16 - Aug 2$26.99, Jul 28 - Aug 18$15.85, Jul 21 - Aug 7$35.12, Aug 2 - Aug 13$26.99, Jul 28 - Aug 18$15.85, Jul 21 - Aug 7$35.12, Aug 2 - Aug 13$26.99, Jul 28 - Aug 18$15.84, Aug 8 10:39 pm$35.12, Aug 2 - Aug 13$26.99, Jul 28 - Aug 18$15.83, Aug 9 - Aug 10$35.12, Aug 2 - Aug 13$26.99, Jul 28 - Aug 18$15.76, Aug 12 7:36 pm$34.77, Aug 14 - Aug 22$26.99, Jul 28 - Aug 18$15.63, Aug 14 5:01 pm$34.77, Aug 14 - Aug 22$26.99, Jul 28 - Aug 18$15.51, Aug 16 9:23 pm$34.77, Aug 14 - Aug 22$26.99, Jul 28 - Aug 18$15.48, Aug 18 2:50 am$34.77, Aug 14 - Aug 22$30.77, Aug 19 - Aug 22$15.33, Aug 20 9:23 am$34.77, Aug 14 - Aug 22$30.77, Aug 19 - Aug 22$15.19, Aug 22 8:37 am$34.42, Aug 23 - Aug 28$30.40, Aug 24 10:13 am$14.92, Aug 24 10:13 am$34.42, Aug 23 - Aug 28$30.37, Aug 25 11:51 am$14.83, Aug 25 11:51 am$34.42, Aug 23 - Aug 28$30.33, Aug 27 - Aug 29$14.61, Aug 27 3:42 pm$34.07, Aug 29 - Sep 4$30.33, Aug 27 - Aug 29$14.46, Aug 29 8:40 pm$34.07, Aug 29 - Sep 4$30.05, Aug 31 1:40 am$14.35, Aug 31 1:40 am$34.07, Aug 29 - Sep 4$29.99, Sep 2 11:59 am$14.15, Sep 2 11:59 am$34.07, Aug 29 - Sep 4$29.96, Sep 3 3:59 pm$14.04, Sep 3 3:59 pm$33.73, Sep 6 - Sep 13$29.90, Sep 6 2:13 am$13.89, Sep 6 2:13 am$33.73, Sep 6 - Sep 13$29.68, Sep 8 11:18 am$13.79, Sep 8 11:18 am$33.73, Sep 6 - Sep 13$29.65, Sep 9 4:48 pm$13.70, Sep 9 4:48 pm$33.73, Sep 6 - Sep 13$29.56, Sep 12 2:03 am$13.50, Sep 12 2:03 am$33.73, Sep 6 - Sep 13$29.53, Sep 13 5:50 am$13.41, Sep 13 5:50 am$33.47, Sep 14 - Oct 6$29.42, Sep 15 8:55 am$13.26, Sep 15 8:55 am$33.47, Sep 14 - Oct 6$29.39, Sep 16 10:18 am$13.17, Sep 16 10:18 am$33.47, Sep 14 - Oct 6$29.33, Sep 18 11:57 am$13.04, Sep 18 11:57 am$33.47, Sep 14 - Oct 6$29.27, Sep 20 12:58 pm$12.93, Sep 20 12:58 pm$33.47, Sep 14 - Oct 6$29.18, Sep 22 7:33 pm$12.90, Sep 22 7:33 pm$33.47, Sep 14 - Oct 6$29.12, Sep 24 11:50 pm$12.82, Sep 24 11:50 pm$33.47, Sep 14 - Oct 6$29.06, Sep 27 2:25 am$12.72, Sep 27 2:25 am$33.47, Sep 14 - Oct 6$29.00, Sep 29 4:16 am$12.65, Sep 29 4:16 am$33.47, Sep 14 - Oct 6$28.91, Oct 2 9:21 am$12.53, Oct 2 9:21 am$33.47, Sep 14 - Oct 6$28.85, Oct 4 11:47 am$12.46, Oct 4 11:47 am$33.47, Sep 14 - Oct 6$28.79, Oct 6 3:25 pm$12.34, Oct 6 3:25 pm$34.81, Oct 8 - Nov 13$28.73, Oct 8 5:58 pm$12.21, Oct 8 5:58 pm$34.81, Oct 8 - Nov 13$28.66, Oct 10 - Oct 20$12.16, Oct 10 7:43 pm$34.81, Oct 8 - Nov 13$28.66, Oct 10 - Oct 20$12.10, Oct 12 10:33 pm$34.81, Oct 8 - Nov 13$28.66, Oct 10 - Oct 20$12.06, Oct 15 12:44 am$34.81, Oct 8 - Nov 13$28.66, Oct 10 - Oct 20$15.92, Oct 17 - Oct 18$34.81, Oct 8 - Nov 13$28.66, Oct 10 - Oct 20$16.53, Oct 20 1:00 pm$34.81, Oct 8 - Nov 13$30.78, Oct 22 - Nov 1$26.30, Oct 22 7:40 pm$34.81, Oct 8 - Nov 13$30.78, Oct 22 - Nov 1$26.19, Oct 27 12:39 pm$34.81, Oct 8 - Nov 13$30.78, Oct 22 - Nov 1$26.06, Nov 1 5:14 pm$34.81, Oct 8 - Nov 13$30.75, Nov 8 4:04 pm$25.95, Nov 8 4:04 pm$34.81, Oct 8 - Nov 13$30.63, Nov 13 11:19 pm$30.60, Nov 13 11:19 pm$35.56, Nov 17 - Nov 21$30.57, Nov 17 1:59 pm$30.56, Nov 17 1:59 pm$35.56, Nov 17 - Nov 21$30.51, Nov 20 3:29 am$30.47, Nov 20 3:29 am$35.56, Nov 17 - Nov 21$30.49, Nov 21 5:53 am$30.42, Nov 21 5:53 am$36.34, Nov 23 - Dec 27$30.45, Nov 23 6:45 am$30.38, Nov 23 6:45 am$36.34, Nov 23 - Dec 27$30.41, Nov 25 11:05 am$30.33, Nov 25 11:05 am$36.34, Nov 23 - Dec 27$30.37, Nov 27 7:56 am$30.27, Nov 27 7:56 am$36.34, Nov 23 - Dec 27$30.33, Nov 29 6:18 am$30.20, Nov 29 6:18 am$36.34, Nov 23 - Dec 27$30.29, Dec 1 3:41 am$30.19, Dec 1 3:41 am$36.34, Nov 23 - Dec 27$30.25, Dec 3 2:54 am$30.12, Dec 3 2:54 am$36.34, Nov 23 - Dec 27$30.21, Dec 5 12:47 am$30.02, Dec 5 12:47 am$36.34, Nov 23 - Dec 27$30.18, Dec 6 7:50 pm$16.88, Dec 6 7:50 pm$36.34, Nov 23 - Dec 27$30.16, Dec 7 8:20 pm$16.01, Dec 7 8:20 pm$36.34, Nov 23 - Dec 27$30.02, Dec 9 9:52 pm$15.96, Dec 9 9:52 pm$36.34, Nov 23 - Dec 27$29.72, Dec 11 10:35 pm$15.92, Dec 11 10:35 pm$36.34, Nov 23 - Dec 27$29.54, Dec 13 9:54 pm$15.87, Dec 13 9:54 pm$36.34, Nov 23 - Dec 27$29.61, Dec 15 - Dec 17$15.81, Dec 15 9:43 pm$36.34, Nov 23 - Dec 27$29.61, Dec 15 - Dec 17$15.71, Dec 17 8:26 pm$36.34, Nov 23 - Dec 27$29.60, Dec 22 - Dec 27$12.59, Dec 22 9:38 am$36.34, Nov 23 - Dec 27$29.60, Dec 22 - Dec 27$12.82, Dec 24 9:41 am$36.34, Nov 23 - Dec 27$29.60, Dec 22 - Dec 27$12.79, Dec 25 10:38 pm$36.34, Nov 23 - Dec 27$29.60, Dec 22 - Dec 27$12.77, Dec 27 12:57 am$36.16, Dec 29 12:00 am$30.38, Dec 29 - Dec 30$12.72, Dec 29 12:00 am$40.41, Dec 30 - Feb 7$30.38, Dec 29 - Dec 30$12.55, Dec 30 12:36 pm$40.41, Dec 30 - Feb 7$30.31, Jan 1 3:41 am$12.20, Jan 1 3:41 am$40.41, Dec 30 - Feb 7$30.23, Jan 4 - Jan 5$12.09, Jan 4 9:24 am$40.41, Dec 30 - Feb 7$30.15, Jan 6 1:43 pm$11.97, Jan 6 1:43 pm$40.41, Dec 30 - Feb 7$30.13, Jan 7 5:38 pm$11.94, Jan 7 5:38 pm$40.41, Dec 30 - Feb 7$30.06, Jan 9 10:00 pm$11.85, Jan 9 10:00 pm$40.41, Dec 30 - Feb 7$30.01, Jan 11 2:03 am$11.80, Jan 11 2:03 am$40.41, Dec 30 - Feb 7$29.86, Jan 13 10:38 pm$15.59, Jan 13 10:38 pm$40.41, Dec 30 - Feb 7$29.75, Jan 15 3:49 pm$16.29, Jan 15 3:49 pm$40.41, Dec 30 - Feb 7$29.55, Jan 17 7:18 am$16.19, Jan 17 7:18 am$40.41, Dec 30 - Feb 7$29.33, Jan 18 11:33 pm$16.48, Jan 18 11:33 pm$40.41, Dec 30 - Feb 7$29.00, Jan 21 9:39 am$16.59, Jan 19 - Jan 21$40.41, Dec 30 - Feb 7$28.82, Jan 23 2:12 am$16.49, Jan 23 - Jan 26$40.41, Dec 30 - Feb 7$28.80, Jan 24 4:49 pm$16.49, Jan 23 - Jan 26$40.41, Dec 30 - Feb 7$28.21, Jan 26 9:01 am$16.49, Jan 23 - Jan 26$40.41, Dec 30 - Feb 7$27.53, Jan 28 2:48 am$17.00, Jan 28 - Feb 5$40.41, Dec 30 - Feb 7$26.66, Jan 29 7:23 pm$17.00, Jan 28 - Feb 5$40.41, Dec 30 - Feb 7$26.05, Jan 31 2:15 pm$17.00, Jan 28 - Feb 5$40.41, Dec 30 - Feb 7$25.32, Feb 2 9:06 am$17.00, Jan 28 - Feb 5$40.41, Dec 30 - Feb 7$23.70, Feb 4 3:15 am$17.00, Jan 28 - Feb 5$40.41, Dec 30 - Feb 7$22.60, Feb 5 8:51 pm$17.00, Jan 28 - Feb 5$40.41, Dec 30 - Feb 7$22.14, Feb 7 3:37 pm$16.99, Feb 7 3:37 pm$40.00, Feb 9 - Mar 31$22.52, Feb 11 6:21 am$17.68, Feb 11 6:21 am$40.00, Feb 9 - Mar 31$21.98, Feb 12 4:55 am$17.08, Feb 12 4:55 am$40.00, Feb 9 - Mar 31$21.42, Feb 13 11:46 pm$17.01, Feb 13 11:46 pm$40.00, Feb 9 - Mar 31$21.12, Feb 15 8:04 pm$16.59, Feb 15 8:04 pm$40.00, Feb 9 - Mar 31$20.82, Feb 17 6:24 pm$17.00, Feb 17 6:24 pm$40.00, Feb 9 - Mar 31$20.26, Feb 19 4:09 pm$16.97, Feb 19 4:09 pm$40.00, Feb 9 - Mar 31$19.88, Feb 21 1:46 pm$15.98, Feb 21 1:46 pm$40.00, Feb 9 - Mar 31$19.31, Feb 23 11:43 am$15.87, Feb 23 11:43 am$40.00, Feb 9 - Mar 31$18.52, Feb 25 9:15 am$15.73, Feb 25 9:15 am$40.00, Feb 9 - Mar 31$18.13, Feb 26 8:50 am$15.61, Feb 26 8:50 am$40.00, Feb 9 - Mar 31$17.05, Mar 1 7:27 am$15.07, Mar 1 7:27 am$40.00, Feb 9 - Mar 31$16.24, Mar 3 1:36 pm$14.63, Mar 3 1:36 pm$40.00, Feb 9 - Mar 31$15.57, Mar 5 3:49 pm$14.29, Mar 5 3:49 pm$40.00, Feb 9 - Mar 31$14.83, Mar 7 4:49 pm$13.58, Mar 7 4:49 pm$40.00, Feb 9 - Mar 31$14.17, Mar 9 6:30 pm$12.98, Mar 9 6:30 pm$40.00, Feb 9 - Mar 31$13.63, Mar 12 3:52 am$12.53, Mar 12 3:52 am$40.00, Feb 9 - Mar 31$12.81, Mar 14 11:02 am$11.81, Mar 14 11:02 am$40.00, Feb 9 - Mar 31$11.69, Mar 17 9:13 am$10.80, Mar 17 9:13 am$40.00, Feb 9 - Mar 31$10.78, Mar 19 2:59 pm$9.88, Mar 19 2:59 pm$40.00, Feb 9 - Mar 31$10.16, Mar 21 8:20 pm$9.39, Mar 21 8:20 pm$40.00, Feb 9 - Mar 31$9.56, Mar 24 3:33 am$8.83, Mar 24 3:33 am$40.00, Feb 9 - Mar 31$9.16, Mar 25 8:07 am$8.43, Mar 25 8:07 am$40.00, Feb 9 - Mar 31$8.32, Mar 27 2:56 pm$7.73, Mar 27 2:56 pm$40.00, Feb 9 - Mar 31$7.68, Mar 28 7:21 pm$7.51, Mar 28 7:21 pm$40.00, Feb 9 - Mar 31$6.38, Mar 31 3:57 am$6.06, Mar 31 3:57 am$39.59, Apr 2 - Apr 8$5.58, Apr 2 5:47 pm$5.24, Apr 2 5:47 pm$39.59, Apr 2 - Apr 8$7.17, Apr 5 8:22 am$7.11, Apr 5 8:22 am$39.59, Apr 2 - Apr 8$8.45, Apr 8 12:15 am$6.79, Apr 8 12:15 am$39.19, Apr 10 - Apr 15$8.29, Apr 10 4:57 pm$7.39, Apr 10 - Apr 13$39.19, Apr 10 - Apr 15$8.36, Apr 13 12:50 pm$7.39, Apr 10 - Apr 13$39.19, Apr 10 - Apr 15$7.71, Apr 15 12:56 am$7.12, Apr 15 12:56 am$38.79, Apr 17 - Apr 22$7.85, Apr 17 1:32 pm$7.31, Apr 17 1:32 pm$38.79, Apr 17 - Apr 22$8.11, Apr 20 5:10 am$7.22, Apr 20 5:10 am$38.79, Apr 17 - Apr 22$8.47, Apr 22 10:44 pm$7.39, Apr 22 10:44 pm$38.39, Apr 25 6:51 pm$7.48, Apr 25 6:51 pm$7.48, Apr 25 6:51 pm$38.39, Apr 28 - May 1$6.46, Apr 28 7:10 pm$6.44, Apr 28 7:10 pm$38.39, Apr 28 - May 1$5.45, May 1 2:40 pm$5.13, May 1 2:40 pm$38.00, May 4 - May 7$4.38, May 4 6:11 am$4.37, May 4 6:11 am$38.00, May 4 - May 7$3.21, May 7 5:36 am$2.86, May 7 5:36 am$37.62, May 11 - May 14$1.81, May 11 3:18 am$1.80, May 11 3:18 am$37.62, May 11 - May 14$8.46, May 14 - May 18$5.89, May 14 10:07 am$37.24, May 18 - May 20$8.46, May 14 - May 18$6.39, May 18 - May 20$37.24, May 18 - May 20$11.63, May 20 3:58 pm$6.39, May 18 - May 20OOS $36.93, May 24 - Jul 23$11.39, May 24 6:11 pm$7.19, May 24 6:11 pmOOS $36.93, May 24 - Jul 23$11.12, May 29 4:34 am$8.59, May 29 - Jun 11OOS $36.93, May 24 - Jul 23$10.97, Jun 2 7:37 pm$8.59, May 29 - Jun 11OOS $36.93, May 24 - Jul 23$10.44, Jun 7 10:19 am$8.59, May 29 - Jun 11OOS $36.93, May 24 - Jul 23$10.13, Jun 11 10:34 am$8.59, May 29 - Jun 11OOS $36.93, May 24 - Jul 23$9.89, Jun 13 10:48 am$8.51, Jun 13 10:48 amOOS $36.93, May 24 - Jul 23$9.65, Jun 17 3:34 am$8.36, Jun 17 3:34 amOOS $36.93, May 24 - Jul 23$9.32, Jun 20 11:08 pm$7.95, Jun 20 11:08 pmOOS $36.93, May 24 - Jul 23$9.19, Jun 24 5:20 pm$7.84, Jun 24 5:20 pmOOS $36.93, May 24 - Jul 23$9.15, Jun 28 7:50 pm$7.79, Jun 28 7:50 pmOOS $36.93, May 24 - Jul 23$9.12, Jul 2 11:13 pm$7.76, Jul 2 11:13 pmOOS $36.93, May 24 - Jul 23$9.11, Jul 7 6:05 am$7.75, Jul 7 6:05 amOOS $36.93, May 24 - Jul 23$12.63, Jul 12 6:03 pm$10.74, Jul 12 6:03 pmOOS $36.93, May 24 - Jul 23$13.38, Jul 16 9:56 am$13.37, Jul 16 9:56 amOOS $36.93, May 24 - Jul 23$12.63, Jul 20 12:54 am$11.59, Jul 20 12:54 amOOS $36.93, May 24 - Jul 23$12.79, Jul 23 1:28 pm$12.63, Jul 20 12:54 amOOS $36.55, Jul 27 - Aug 1$13.09, Jul 27 - Jul 28$12.63, Jul 20 12:54 amOOS $36.55, Jul 27 - Aug 1$13.99, Aug 1 12:35 pm$12.63, Jul 20 12:54 amOOS $36.15, Aug 5 - Aug 7$14.89, Aug 5 3:39 am$12.63, Jul 20 12:54 amOOS $36.15, Aug 5 - Aug 7$15.69, Aug 7 12:05 am$12.63, Jul 20 12:54 am$36.15, Aug 10 - Sep 26$12.63, Jul 20 12:54 am$12.59, Aug 10 8:12 pm$36.15, Aug 10 - Sep 26$14.29, Aug 14 2:56 pm$12.63, Jul 20 12:54 am$36.15, Aug 10 - Sep 26$18.59, Aug 18 8:31 am$12.63, Jul 20 12:54 am$36.15, Aug 10 - Sep 26$19.98, Aug 22 3:06 am$12.63, Jul 20 12:54 am$36.15, Aug 10 - Sep 26$19.93, Aug 24 12:43 am$12.63, Jul 20 12:54 am$36.15, Aug 10 - Sep 26$19.85, Aug 27 7:52 pm$12.63, Jul 20 12:54 am$36.15, Aug 10 - Sep 26$35.90, Aug 31 1:06 pm$19.69, Aug 31 1:06 pm$36.15, Aug 10 - Sep 26$32.14, Sep 2 11:05 am$19.64, Sep 2 11:05 am$36.15, Aug 10 - Sep 26$31.88, Sep 4 10:21 am$19.57, Sep 4 10:21 am$36.15, Aug 10 - Sep 26$31.62, Sep 6 10:06 am$19.44, Sep 6 10:06 am$36.15, Aug 10 - Sep 26$31.20, Sep 10 8:07 am$19.17, Sep 10 8:07 am$36.15, Aug 10 - Sep 26$30.93, Sep 12 7:47 am$19.07, Sep 12 7:47 am$36.15, Aug 10 - Sep 26$30.87, Sep 16 4:58 am$18.70, Sep 16 4:58 am$36.15, Aug 10 - Sep 26$30.86, Sep 18 4:12 am$18.53, Sep 18 4:12 am$36.15, Aug 10 - Sep 26$30.66, Sep 22 2:25 am$15.15, Sep 22 2:25 am$36.15, Aug 10 - Sep 26$30.44, Sep 26 12:43 am$14.91, Sep 26 12:43 am$36.53, Sep 29 11:13 pm$30.15, Sep 29 11:13 pm$14.62, Sep 29 11:13 pm$36.93, Oct 4 - Oct 23$30.16, Oct 4 12:45 am$14.36, Oct 4 12:45 am$36.93, Oct 4 - Oct 23$30.12, Oct 8 - Oct 20$14.01, Oct 8 3:27 am$36.93, Oct 4 - Oct 23$30.12, Oct 8 - Oct 20$13.77, Oct 12 5:30 am$36.93, Oct 4 - Oct 23$30.12, Oct 8 - Oct 20$13.58, Oct 16 4:13 am$36.93, Oct 4 - Oct 23$30.12, Oct 8 - Oct 20$13.30, Oct 20 1:09 am$36.93, Oct 4 - Oct 23$29.48, Oct 23 10:03 pm$13.03, Oct 23 10:03 pm$37.29, Oct 27 - Oct 31$28.93, Oct 27 7:57 pm$13.00, Oct 27 - Nov 15$37.29, Oct 27 - Oct 31$28.12, Oct 31 7:33 pm$13.00, Oct 27 - Nov 15$37.66, Nov 4 7:44 pm$27.58, Nov 4 7:44 pm$13.00, Oct 27 - Nov 15$38.03, Nov 8 - Nov 15$26.95, Nov 8 10:29 pm$13.00, Oct 27 - Nov 15$38.03, Nov 8 - Nov 15$26.47, Nov 11 12:29 am$13.00, Oct 27 - Nov 15$38.03, Nov 8 - Nov 15$25.49, Nov 15 3:26 am$13.00, Oct 27 - Nov 15$38.41, Nov 19 12:46 pm$24.68, Nov 19 12:46 pm$12.10, Nov 19 12:46 pm$48.97, Nov 23 - Dec 11$24.05, Nov 23 10:28 pm$11.20, Nov 23 10:28 pm$48.97, Nov 23 - Dec 11$23.30, Nov 28 1:29 pm$13.13, Nov 28 1:29 pm$48.97, Nov 23 - Dec 11$22.85, Dec 3 10:34 am$14.06, Dec 3 10:34 am$48.97, Nov 23 - Dec 11$22.65, Dec 5 9:54 pm$12.55, Dec 5 9:54 pm$48.97, Nov 23 - Dec 11$22.29, Dec 11 12:52 am$9.54, Dec 11 12:52 am$48.48, Dec 16 1:57 am$21.58, Dec 16 1:57 am$6.84, Dec 16 1:57 am$48.72, Dec 21 - Dec 26$21.09, Dec 21 12:07 am$12.92, Dec 21 12:07 am$48.72, Dec 21 - Dec 26$20.32, Dec 26 1:59 pm$12.98, Dec 26 - Dec 31$47.26, Dec 31 5:04 am$19.56, Dec 31 5:04 am$12.98, Dec 26 - Dec 31$45.84, Jan 4 - Jan 9$18.99, Jan 4 10:15 pm$12.95, Jan 4 10:15 pm$45.84, Jan 4 - Jan 9$18.98, Jan 9 - Jan 17$13.00, Jan 9 - Jan 12$44.46, Jan 12 7:43 am$18.98, Jan 9 - Jan 17$13.00, Jan 9 - Jan 12$44.17, Jan 17 - Feb 1$18.98, Jan 9 - Jan 17$12.99, Jan 17 6:30 am$44.17, Jan 17 - Feb 1$18.80, Jan 19 7:29 pm$13.49, Jan 19 - Feb 14$44.17, Jan 17 - Feb 1$17.09, Jan 24 7:53 pm$13.49, Jan 19 - Feb 14$44.17, Jan 17 - Feb 1$15.66, Jan 29 8:08 pm$13.49, Jan 19 - Feb 14$44.17, Jan 17 - Feb 1$14.99, Feb 1 - Feb 19$13.49, Jan 19 - Feb 14$43.72, Feb 6 - Feb 9$14.99, Feb 1 - Feb 19$13.49, Jan 19 - Feb 14$43.28, Feb 14 - Mar 29$14.99, Feb 1 - Feb 19$13.49, Jan 19 - Feb 14$43.28, Feb 14 - Mar 29$14.99, Feb 1 - Feb 19$14.38, Feb 19 - Mar 17$43.28, Feb 14 - Mar 29$14.97, Feb 25 4:57 am$14.38, Feb 19 - Mar 17$43.28, Feb 14 - Mar 29$18.99, Mar 6 2:08 am$14.38, Feb 19 - Mar 17$43.28, Feb 14 - Mar 29$29.83, Mar 17 12:34 pm$14.38, Feb 19 - Mar 17$43.28, Feb 14 - Mar 29$25.95, Mar 29 2:03 am$16.80, Mar 29 2:03 am 60,6561,348,083 1,562,500 1,171,875 781,250 390,625 Oct Dec Feb Apr Jun Aug Oct Dec Feb Apr 2015 2016

Price Details

New

Last Seen $43.28 Mar 29, '16
Highest $48.97 Nov 23, '15
Lowest $33.47 Sep 14, '14
Average $43.28 (30d avg)
$44.01 (90d avg)
$43.13 (180d avg)
$40.05 (365d avg)
$38.29 (Lifetime average)
Added Apr 16, 2014

3rd Party New

Last Seen $25.95 Mar 29, '16
Highest $35.90 Aug 31, '15
Lowest $1.80 May 11, '15
Average $24.45 (30d avg)
$18.70 (90d avg)
$22.21 (180d avg)
$17.81 (365d avg)
$22.22 (Lifetime average)
Added Apr 16, 2014

3rd Party Used

Last Seen $16.80 Mar 29, '16
Highest $30.60 Nov 13, '14
Lowest $1.81 May 11, '15
Average $14.38 (30d avg)
$13.75 (90d avg)
$13.14 (180d avg)
$12.04 (365d avg)
$14.12 (Lifetime average)
Added Apr 16, 2014

Sales Rank

30 day average: 802,723
90 day average: 588,641

Product Description

MASTER UNIVERSAL ENGINEERING PROBLEM-SOLVING TECHNIQUES Advance your engineering skills and become a capable, confident problem solver by learning the wide array of tools, processes, and tactics employed in the field. Going far beyond "plug-and-chug" solutions, this multidisciplinary guide explains the underlying scientific principles, provides detailed engineering analysis, and lays out versatile problem-solving methodologies. Written by an "engineer who teaches," with more than 20 years of experience as a practicing engineer and numerous awards for teaching engineering, this straightforward, one-of-a-kind resource fills a long-vacant niche by identifying and teaching the procedures necessary to address and resolve any problem, regardless of its complexity. Engineering Problem-Solving 101: Time-Tested and Timeless Techniques contains more than 50 systematic approaches spanning all disciplines, logically organized into mathematical, physical/mechanical, visual, and conceptual categories. Strategies are reinforced with practical reference tables, technical illustrations, interesting photographs, and real-world examples. Inside, you'll find:

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