| Coker, R. E. (1920). The diamond-back terrapin: past, present, and future. Scientific Monthly, 11, 171–186. |
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| Added by: Admin 25 Aug 2008 22:06:35 UTC |
Pop. 3.25%
|
| Venzmer, G. (1920). Beobachtungen an der iberischen und an der kaspischen schildkröte in cilicien. Zoologischer Anzeiger, 51, 285–302. |
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| Added by: Admin 06 Jan 2014 18:25:28 UTC |
Pop. 5%
|
| Werner, F. (1920). Beitrage zur kenntnis der reptilien- und amphibienfauna albaniens. Zoologischer Anzeiger, 51, 21–24. |
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| Added by: Sarina Wunderlich 27 Nov 2011 14:28:22 UTC |
Pop. 3.75%
|
| Wetmore, A. (1920). Observations on the hibernation of the box turtle. Copeia, 77, 3–5. |
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| Added by: Admin 06 Jan 2014 18:23:14 UTC |
Pop. 4.5%
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