TY  - BOOK
AU  - MacKenzie,D.R.
AU  - Cadavid,John
ED  - International Maize and Wheat Improvement Center.
TI  - International Maize and Wheat Improvement Center = : Ensayos intern acionales de maiz y Trigo manual para conversion de fertilizantes a uni dades basicas / 
PY  - 1972///
CY  - Mexico : 
PB  - International Maize and Wheat Improvement Center 
KW  - Corn
KW  - Fertilizers
ER  -