P. Alston Waring <br/><br/>
Crops : A self teaching course, based on crop management and soil conservation 

 - USA  John Wiley and Sons  1937 
 - 307p 
<br/><br/>P. Alston Waring; Joseph F. Cox & Layman Jackson: Crops : A self teaching course, based on crop management and soil conservation.  USA.  John Wiley and Sons, 1937.--(633WAR)   
<br/><br/><br/>ENGLISH 
<br/><br/><label>Dewey Class. No.: </label>633  / COX