Sharma R. <br/><br/>
Encyclopedia of Agriculture Vol.1Advance studies in agriculture 

 - 1st 
 -  Discovery Publishing House PVT.LTD., New Delhi  2012 
<br/><br/><label>ISBN: </label>978-93-80235-33-2 
<br/><br/><label>Dewey Class. No.: </label>630.3SHA