National productivity council. (1962). Sugar industry in philippines, Hawai, USA and Puerto Rico. National productivity council.
シカゴスタイル引用形National productivity council. Sugar Industry in Philippines, Hawai, USA and Puerto Rico. New Delhi: National productivity council, 1962.
MLA引用形式National productivity council. Sugar Industry in Philippines, Hawai, USA and Puerto Rico. National productivity council, 1962.
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