Kumar, Arvind <br/><br/>
Perspectives in agroecosystem 
by Arvind Kumar 
 - Delhi  Daya Publishing House  2003 
 - 413p. 
<br/><br/><label>ISBN: </label>81 7035 311 4 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agricultural ecology
<br/><br/><label>Dewey Class. No.: </label>630.2745  / KUM/P