Havlin, John L.  <br/><br/>
Soil fertility and fertilizers:  an introduction to nutrient management 

 - 6th ed. 
 - New Jersey:  Prentce Hall,  1999 
 - ix, 499p.;  26cm. 
<br/><br/><label>ISBN: </label>0136268064 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Soil fertility
<br/><br/><label>Dewey Class. No.: </label>631.422  / SOI