Multiple cropping systems / 
[editor], Charles A. Francis. 
 - New York :  Macmillan,  c1986. 
 - xiv, 383 p. :  ill. 
<br/><br/><label>ISBN: </label>0029486106 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Multiple cropping.
<br/><br/><label>LC Class. No.: </label>S603.7  / .M85 1986 
<br/><br/><label>Dewey Class. No.: </label>631.5/8�19