Harold D. Hughes <br/><br/>
Crop production : Principles and practices 

 - New york  Macmillan Company  1957 
 - 620p 
<br/><br/>Harold D. Hughes & Edwin R. Henson: Crop production : Principles and practices.  New york.  Macmillan Company, 1957.--(633HUG)   
<br/><br/><br/>ENGLISH 
<br/><br/><label>Dewey Class. No.: </label>633  / HUG