Endangered and threatened amphibians and reptiles in the United States / 
compiled by Ray E.Ashton ; edited by Stephen R.Edwards and George R.Pisani 
 - Gainesvilla, Florida :  The Society for the Study of Amphibians and Reptiles,  1976 
 - v, 65 p. ;  25 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Amphibians--United States<br/>Reptiles--United States<br/>Endangered species--United States