(1981). Cimmyt's maize program presentation week - September 7-11,1981. México: International Maize and wheat improvement center.
シカゴスタイル引用形Cimmyt's Maize Program Presentation Week - September 7-11,1981. México: International Maize and wheat improvement center, 1981.
MLA引用形式Cimmyt's Maize Program Presentation Week - September 7-11,1981. México: International Maize and wheat improvement center, 1981.
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