Two species of tortoises in northern South America
Williams, Ernest E. (Ernest Edward)
Article
1960
Breviora
120
1--13
BioStor
English
Cambridge, Mass Museum of Comparative Zoology, Harvard University [1952-
BioStor: https://biostor.org/reference/4395
In copyright. Digitized with the permission of the rights holder.
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http://creativecommons.org/licenses/by-nc-sa/3.0/
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