Frazer, J. F. D. <br/><br/>
Amphibians / 
by J. F. D. Frazer 
 - London :  Wykeham Publications,  1973 
 - vi, 122 p. :  ill., maps, ;  22 cm. 
 - The Wykeham science series  v. 25 .
<br/><br/>Bibliography : p. 114-115 
<br/><br/><label>ISBN: </label>0851093302 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Amphibians