Cox, Joseph Frank. <br/><br/>
Crop production and manafement 

 - 2 ed. 
 - New York :  Wiley,  1930 
 - 469 p.  : ilus. 
<br/><br/><label>LCCN: </label>31381 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Cultivos.
<br/><br/><label>Dewey Class. No.: </label>631.5  / C69 1930