Singh H.P. and Thomas, V.G.  <br/><br/>
Organic Horticulture principles,practices and technologies 

 - 1st 
 -  Westville Publishing House, New Delhi  2010 
<br/><br/><label>ISBN: </label>978-81-85873-94-7 
<br/><br/><label>Dewey Class. No.: </label>635SIN