John H. Martin <br/><br/>
Principles of field crop production. Ed 2 

 - 2nd Ed 
 - New York  The Macmillan Company  1967 
 - 320p 
<br/><br/>John H. Martin & Warren H. Leonard: Principles of field crop production. Ed 2.  (2nd Ed)  New York.  The Macmillan Company, 1967.--(633MAR)   
<br/><br/><br/>ENGLISH 
<br/><br/><label>Dewey Class. No.: </label>633  / MAR