Verma,P.S <br/><br/>
Environmental Biology (Principles of Ecology) 

 - 2nd Ed. 
 - New Delhi  S.Chand & Company Ltd  2015 
 - 591p. 
<br/><br/><label>ISBN: </label>978-81-219-0859-7 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Pharmacy
<br/><br/><label>Dewey Class. No.: </label>570  / VE-E