Yawalkar, K. S. <br/><br/>
Manures and fertilisers / 
Yawalkar, K. S. 
 - 4th rev. ed. 
 - Nagpur:  Agri - Horticultural Publishing House,  1977. 
 - xvi, 379p.; 24cm. 
<br/><br/>Includes bibliographical references. 
<br/><br/><label>ISBN: </label>97893832521514281 
<br/><br/><label>Dewey Class. No.: </label>631.8 YAW