Dr. VERMA ,P.S. <br/><br/>
A MANUAL OF PRACTICAL ZOOLOGY INVERTEBRATES 

 - 15th Ed. 
 - Calcutta  Kalyani Publishers, Calcutta   2013 
<br/><br/><label>ISBN: </label>9788121908290 
<br/><br/><label>Dewey Class. No.: </label>592  / DR./A