Martín, John Holmes. <br/><br/>
Principles of field crop production 

 - 3 ed. 
 - New York :  Collier MacMillan,  1976 
 - 1118 p.  : ilus 
 - Collier Macmillan International editions .
 - Collier Macmillan International editions .
<br/><br/><label>LCCN: </label>31327 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agricultura--E.U.A.<br/>Cultivos.
<br/><br/><label>Dewey Class. No.: </label>633  / M37 1976