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| Last Seen |
$27.96 Mar 28, '16
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| Highest |
$31.74 Mar 5, '16
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| Lowest |
$20.14 Aug 8, '15
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| Average |
$31.74 (30d avg) $31.08 (90d avg) $29.40 (180d avg) $27.66 (365d avg) $27.05 (Lifetime average) |
| Added |
Sep 14, 2014 |
3rd Party New
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$23.19 Mar 28, '16
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$25.21 Dec 30, '15
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| Lowest |
$16.14 Aug 12, '15
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| Average |
$25.10 (30d avg) $25.03 (90d avg) $21.57 (180d avg) $21.18 (365d avg) $21.47 (Lifetime average) |
| Added |
Sep 14, 2014 |
3rd Party Used
| Last Seen |
$28.07 Mar 28, '16
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$28.08 Jan 24, '16
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$5.37 Sep 19, '15
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| Average |
$28.07 (30d avg) $28.07 (90d avg) $24.45 (180d avg) $21.71 (365d avg) $21.46 (Lifetime average) |
| Added |
Sep 14, 2014 |
Sales Rank
30 day average: 1,206,242
90 day average: 1,191,630
Product Description
In this comprehensive, one-volume reference, Nature Conservancy scientist Bryan P. Piazza poses five key questions:
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