DELORIT, Richard J. <br/><br/>
Crop Production. 

 - 4th edi. 
 - New Jwrsey.  Prentice-Hall, Inc.  1954 
 - 744p. 
<br/><br/><label>ISBN: </label>0 13 194761 3 
<br/><br/><label>Dewey Class. No.: </label>631.5