Advances in agronomy :   prepared under the auspices of the American society of agronomy /  
edited by A. G. Norman. 
 - New York :  Academic Press,  c 1951. 
 - Vols. :  ill. ;  24 cm. 
<br/><br/> Includes index. 
<br/><br/>V. 3-- ; 
<br/><br/>63  63 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agriculture and related technologies.
<br/><br/><label>Dewey Class. No.: </label>630 / N781a