Schroth, G.  . <br/><br/>
Trees, crops and soil fertility concepts and research methods /  
edited by G. Schroth and F.L. Sinclair. 
 - Cambridge :   CABI ,   2003 
 - xii, 437p :  
<br/><br/><label>ISBN: </label>0-85199-593-4 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Soil fertility-Research
<br/><br/><label>Dewey Class. No.: </label>J:1  / P3;1