- The Voice Book: Caring For, Protecting, and Improving Your Voice
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Amazon
From $15.90 (New)
From $15.90 (New)
| Latest | $15.90 Apr 17, '16 |
| Highest | $16.10 Jan 23, '16 |
| Lowest | $11.04 Aug 6, '15 |
| Average | $15.34 (30d avg) $15.75 (90d avg) $15.52 (180d avg) $14.50 (365d avg) $13.66 (Lifetime average) |
| Added | Sep 12, 2013 |
| Latest | $9.33 Apr 17, '16 |
| Highest | $12.79 Sep 20, '15 |
| Lowest | $6.88 Dec 14, '15 |
| Average | $9.22 (30d avg) $9.61 (90d avg) $9.41 (180d avg) $9.73 (365d avg) $9.81 (Lifetime average) |
| Added | Sep 12, 2013 |
| Latest | $7.35 Apr 17, '16 |
| Highest | $10.83 Jan 28, '16 |
| Lowest | $3.26 Dec 4, '15 |
| Average | $7.57 (30d avg) $8.85 (90d avg) $7.93 (180d avg) $7.96 (365d avg) $8.08 (Lifetime average) |
| Added | Sep 12, 2013 |
30 day average: 76,569
90 day average: 61,426