Zweifel, Richard George <br/><br/>
Results of the Puritan-American Museum of Natural History expedition to Western Mexico : Herpetology of the Tres Marķas Islands / 
Richard G. Zweifel. 
 -- New York :   [s.n.],   1960 
 - p. 81-128. -- 
 (Bulletin of the American Museum of Natural History  ;  119, 2).
<br/><br/><label>Subjects--Topical Terms: </label><br/>Anfibios<br/>Reptiles
<br/><br/><label>Universal Decimal Class. No.: </label>598.1 ; 597.6