National Productivity council. (1963). Industrial maintenance in W.Germany, Britain and USA. Natioanl productivity council.
シカゴスタイル引用形National Productivity council. Industrial Maintenance in W.Germany, Britain and USA. New Delhi: Natioanl productivity council, 1963.
MLA引用形式National Productivity council. Industrial Maintenance in W.Germany, Britain and USA. Natioanl productivity council, 1963.
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