Stebbins, Robert Cyril  1915-, <br/><br/>
A field guide to western reptiles and amphibians :  Field marks of all species in western north america, induding baja california / 
Text and ilus. by Robert c. stebbins 
 - 336 páginas 
 - The peterson field guide series;  16 .
<br/><br/><label>ISBN: </label>0395082110 0-395-19421-0  (rustica) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Anfibios--Identificacion<br/>Reptiles--Identificacion<br/>Reptiles--America del Norte<br/>Anfibios--America del Norte
<br/><br/><label>LC Class. No.: </label>QL651  / S84 1985