International Rice Research Institute. (1989). 20th Asia rice farming systems working group meeting: Report. [Manila]: International Rice Research Institute.
シカゴスタイル引用形International Rice Research Institute. 20th Asia Rice Farming Systems Working Group Meeting: Report. [Manila]: International Rice Research Institute, 1989.
MLA引用形式International Rice Research Institute. 20th Asia Rice Farming Systems Working Group Meeting: Report. [Manila]: International Rice Research Institute, 1989.
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