International Maize and Wheat Improvement Centre <br/><br/>
Planning technological appropriate to farmers concepts and procedures 

 - Mexico  Centro International De Mejoramiento De Maiz Y Trigo  1980 
 - 71p 
<br/><br/><br/>ENGLISH 
<br/><br/><label>Dewey Class. No.: </label>630.715  / IMWIC