Yawalkar, K. S. <br/><br/>
Manures and fertilisers 

 - 10th ed. 
 - Nagpur  Agri Horticulture Publishing House  2008 
 - xx,364p.;  22cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Botany
<br/><br/><label>Dewey Class. No.: </label>631.8  / YAW