Wilson, Harold Kirby, 1900-1958.  Wilson, Harold Kirby, 1900-1958. <br/><br/>
Grain crops. 

 - 2nd ed. 
 - New York :  McGraw-Hill,  1955. 
 - McGraw-Hill publications in the agricultural sciences .
<br/><br/>Includes bibliographies. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Grain.