Kotpal, R L. <br/><br/>
Modern textbook of zoology : invertebrates   

 - 8th edition. 
 - Meerut :   Rastogi Pub,   2002. 
<br/><br/><label>ISBN: </label>8171335772 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Life Sciences
<br/><br/><label>Dewey Class. No.: </label>592  / KOT