Hughes, Harold D. . <br/><br/>
Crop Production: Principles and Practices /  Textual Documents 
Harold D. Hughes. 
 - 1st ed / 
 - New York :  The Macmillan Company ,  1930. 
 - 816p ;  23 cm. 
<br/><br/><label>ISBN: </label> HB 
<br/><br/><label>Subjects--Index Terms: </label>Agriculture T/G-Agriculture 
<br/><br/><label>Dewey Class. No.: </label>631.141  / H 874 C