Symposium on diversity of soils in the tropics (1978: Los Angeles, California) :  paper presented during the annual meeting in Los Angeles, California, November 13-18, 1978. 

 - Madison, Wisconsin :  American Society of Agronomy,  1978. 
 - viii, 119 pages :  illustrations ;  23 cm. 
<br/><br/> Includes bibliographical references. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Soils -- Tropics -- Congresses.