Cox, Joseph Frank. <br/><br/>
Crops  : a self-teaching course : based on crop management and soil conservation 

 - New York :  Wiley,  1937 
 - 307 p.  : ilus. 
<br/><br/> 2c. ed. x EVA. Romed forces Institute 
<br/><br/><label>LCCN: </label>34981 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Cultivos--E.U.A.<br/>Suelos--Conservación--E.U.A.
<br/><br/><label>Dewey Class. No.: </label>633  / C69c