Leon, Carlos De. <br/><br/>
Maize diseases :    a guide for field identication /  
Carlos De Le on. 
 - Mexico :    International Maize and wheat Improvement Center    1974 . 
 - 77 p. :    ill ;    17 cm. 
<br/><br/>Includes bibliographical references. 
<br/><br/><label>Subjects--Topical Terms: </label><br/> Corn -- Diseases and pests -- Handbooks, manuals etc. -- .