Efficient fertilizer use in acid upland soils of the humid tropics 
/by H. R. Von Uexkull 
 - Rome  Food and agriculture  1986 
 - x, 59 pages 
<br/><br/> Include references 
<br/><br/><label>ISBN: </label>9251023875 
<br/><br/><label>Dewey Class. No.: </label>631.81  / VON