Kotpal, R. L. <br/><br/>
Modern Text Book of Zoology : 
Invertebrates 
 - 7th 
 - Meerut  Rastogi Publications   1973 
 - 770 
<br/><br/><label>ISBN: </label>8171333729 
<br/><br/><label>Publisher. No.: </label> Nation Wide Books M G Road Bangalore 
<br/><br/><label>Subjects--Personal Names: </label> Zoology  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Zoology