Wilson, Harold K. <br/><br/>
Field crop production :  agronomic principles and practices / 
Harold K. Wilson and Will M. Myers. 
 - Philadelphia :  J.B. Lippincott,  c 1954. 
 - viii, 674 p. :  ill. ;  24 cm. 
<br/><br/> Includes index. 
<br/><br/>337  337 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Field crops.
<br/><br/><label>Dewey Class. No.: </label>631.5 / W694f