Hughes, Harold D.  <br/><br/>
Crop production :  principles and practices / 
Harold D. Hughes and Edwin R. Henson. 
 - New York :  The Macmillan Com.,   1957. 
 - x, 620p. :  ills. ;  28 cm.  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Crop.<br/>Farming. <br/>Agriculture.
<br/><br/><label>Dewey Class. No.: </label>633  / HUG 1957