HAVLIN, John L. and et al <br/><br/>
Soil Fertility And Fertilizers 

 - 7th ed. 
 - New Delhi  PHI Learning Private Limited  2011 
 - x, 515p in 
<br/><br/><label>ISBN: </label>978-8120330177 
<br/><br/><label>Dewey Class. No.: </label>631.8