Hutcheson, Thomas Barksdale. <br/><br/>
The production of field crops, a textbook of agronomy 

 - 3 ed. 
 - New York :  McGraw-Hill,  1948 
 - 430 p.  : ilus. 
<br/><br/><label>LCCN: </label>59961 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agricultura--E.U.A.<br/>Cultivos.<br/>Cultivos--E.U.A.
<br/><br/><label>Dewey Class. No.: </label>633  / H88 1948