Sharma, P.D. <br/><br/>
Ecology and environment 
/ P.D. Sharma. 
 - 7th ed. 
 - Meerut  : Rastogi Publications  ,1999. 
 - 660p.:ill.  ;23cm. 
<br/><br/><label>ISBN: </label>9788171339051 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ecology<br/>Biogeography<br/>Environment
<br/><br/><label>Dewey Class. No.: </label>577.27  / Sh531E