Advances in agronomy :   prepared under the auspices of the American society of agronomy / 
edited by A.G. Norman. 
 - New York :  Academic Press,  c 1949. 
 - vols. :  ill. ;  24 cm. 
<br/><br/> includes index. 
<br/><br/>V. 1-- ; 
<br/><br/>324  324 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agriculture and related technologies.
<br/><br/><label>Dewey Class. No.: </label>630 / N781a