Annual Report University Consortium on the Soils of the Tropics 

 -  National Technical Information Services U.S Department of Commerce 
 - vp.:  25 cm. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Sustainable agriculture<br/>Agricultural research <br/>Soil science 
<br/><br/><label>Dewey Class. No.: </label>631.4  / UNI