Verma, P.S.  . <br/><br/>
Biology /  
P.S.Verma and B.P. Pandey. 
 - New Delhi :   S.Chand & Co. Ltd., ,   1980 
 - xvii, 872p ;  
<br/><br/><label>ISBN: </label>81-219-2558-4 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Biology
<br/><br/><label>Dewey Class. No.: </label>G  / M0