Sharma, P.D. <br/><br/>
Ecology and Environment 
/ by P.D. Sharma 
 - 7th ed. 
 - Meerut :  Rastogi Publications,  2001 
 - 660 p. 
<br/><br/><label>ISBN: </label>81-7133-528-4 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Biology
<br/><br/><label>Subjects--Facted Index Terms: </label><br/>Ecology
<br/><br/><label>Dewey Class. No.: </label>577  / SHA-E7