Wellhausen, Edwin John. <br/><br/>
Races of maize in México, their origin, characteristics and distribution 

 - Cambridge :  Harvard University,  1952 
 - 223 p.  : ilus. 
<br/><br/><label>LCCN: </label>53445 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Maíz--Variedades.<br/>Maíz--México.
<br/><br/><label>Dewey Class. No.: </label>633.15  / W45ra