Hughes, Harold <br/><br/>
Crop Production  

 - London :  Macmillan publishing ,  1972 
 - 627 p. :  ill ;  23 cm 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agriculture and related technologies
<br/><br/><label>Dewey Class. No.: </label>631  / HUG