LAL,SS <br/><br/>
A Text Book Of Practical Zoology : Invertibrate 

 - 6th Ed.  Reprint 
 -  Rastogi Publishers ,  1992 
 - 368p 
<br/><br/><label>ISBN: </label>81-7133-097-5 
<br/><br/><label>Dewey Class. No.: </label>592  / LAL/A