Rattan Lal <br/><br/>
Sustainable management of soil resources in the humid tropics 
Rattan Lal 
 - Tokyo  United Nations university Press Japan        1995 
 - xv,146p.  cm. 
<br/><br/> Bib p. 138-46 
<br/><br/><label>Source: </label> General Book 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agricultural Geography
<br/><br/><label>Dewey Class. No.: </label>U672(J:1).192.N9, N5/TD1