Webb, J. E. <br/><br/>
Guide to living amphibians / 
J. E. Webb, J. A. Wallwork, J. H. Elgood. 
 - London :  MacMillan,  1981. 
 - 144 p. :  ill. ;  22 cm. 
<br/><br/><label>ISBN: </label>0333306015 0333307496 (hard cover) 0333256530 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Amphibians--Classification.