Mengel , K.  . <br/><br/>
Principles of plant nutrition /  
by Konrad Mengel and Ernest A. Kirkby. 
 - New Delhi :   Star Books Distributors ,   2001 
 - 849p ;  
<br/><br/><label>ISBN: </label>81-8128-405-4 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Botany
<br/><br/><label>Dewey Class. No.: </label>I  / P1