Proceedings of the first maize workshop September 1971 el batan Mexi co /    
International Maize and Wheat Improvement Center.Edited by A. C arballo Q. 
 - Mexico :   International Maize and Wheat Improvement Center   1971 . 
 - 107 p. :    ill ;    28 cm. 
<br/><br/>Includes bibliographical references. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Corn --------Congresses.