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

 - 6th Ed.  Reprint 
 -  Rastogi Publishers ,  1991 
 - 392p 
<br/><br/><label>ISBN: </label>81-7133-097-5 
<br/><br/><label>Dewey Class. No.: </label>592  / LAL/T