Delorit, Richard J. <br/><br/>
Crop production:  principles and practices/ 
Richard J. Delorit, Henry L. Anlgren 
 - Englewood:  Prentice-Hall,  1953 [reprint 1957] 
 - (ca.199 p.);  23 cm. 
<br/><br/> Includes index 
<br/><br/><label>ISBN: </label>$ 4.75 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Crops<br/>Crop science<br/>Crop rotation
<br/><br/><label>Dewey Class. No.: </label>631.5