| Greig, J. C., & de Villiers, A. L. (1982). The geometrical tortoise - symptom of a dying ecosystem. J. Bot. Soc. S. Afr., 68(4), 106–108. |
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| Added by: Admin 24 Aug 2008 18:46:34 UTC |
Pop. 2.25%
|
| Horak, I. G., Mckay, I. J., Henen, B. T., Heyne, H., Hofmeyr, M. D., & de Villiers, A. L. (2006). Parasites of domestic and wild animals in south africa. xlvii. ticks of tortoises and other reptiles. The Onderstepoort journal of veterinary research, 73(3), 215–227. |
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| Added by: Admin 14 Aug 2008 20:33:44 UTC |
Pop. 3.25%
|
| de Villiers, A. L. (1962). West african tortoises, turtles and terrapins. African Wildlife, 16, 39–52. |
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| Added by: Admin 05 Jan 2009 16:04:45 UTC |
Pop. 4%
|
| de Villiers, A. L. (1958). Tortues et crocodiles de l'afrique noire francaise. I.F.A.N. Dakar. |
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| Added by: Admin 25 Aug 2008 21:59:17 UTC |
Pop. 2.25%
|
