Walia, S.S <br/><br/>
Principles of Organic Farming / 
Walia, S.S. & R.K.Nanwal 
 - 1st Edition 
 - Chennai :  Nipa ,  2022 
 - 401 pages 
<br/><br/><label>ISBN: </label>9789391383053 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Science
<br/><br/><label>Dewey Class. No.: </label>631.584  / WAL