Kumar, H D <br/><br/>
Agricultural ecology 

 - New Delhi:  A. P. H. Pub. Corp,  2006 
 - xii,314 p. ; 26 cm 
<br/><br/><label>ISBN: </label>9788176489942 
<br/><br/><label>Dewey Class. No.: </label>630.2745 KUM