Prasad, S. N. <br/><br/>
A text book of invertebrate zoology 
S.N Prasad 
 - New Delhi  New Age 
 - vii, 538 pages  pc   23 cm 
<br/><br/><label>ISBN: </label>0852269285 
<br/><br/><label>Dewey Class. No.: </label>596 PRA 1991