Hanson, Earl Dorchester <br/><br/>
Animal diversity / 
Earl D. hanson 
 - New Delhi :  Prentice-Hall of India,  1963 
 - 116 p. :  ill. ;  23 cm. 
 - Foundations of modern biology series .
<br/><br/>Includes bibliography 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Zoology--Variation<br/>Evolution<br/>Phylogeny