Organic fertilizers :  types, production and environmental impact / 
Rajeev Pratap Singh, editor. 
 - Hauppauge, N.Y. :  Nova Science Pub,  2012 
 - x, 273 p. :  ill. ;  26 cm. 
 - Agriculture issues and policies .
<br/><br/> Includes index 
<br/><br/><label>ISBN: </label>9781620814222 (hbk.) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Organic fertilizers