Hughes, H.D. Metcalfe, D.S. <br/><br/>
Crop Production 

 - Macmillan Company (New York) / Collier Macmillan Ltd  N.Y.  1972 
 - 627p.  fig., ill. 
<br/><br/><label>Nat. Bib. No.: </label>4933 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agriculture
<br/><br/><label>Universal Decimal Class. No.: </label>631.5  / HUG