Dyfyniad APA

National Research Council (U.S.). Committee on Work in Industry. (1941). Fatigue of workers: Its relation to industrial production. Reinhold Publishing Corporation.

Dyfyniad Arddull Chicago

National Research Council (U.S.). Committee on Work in Industry. Fatigue of Workers: Its Relation to Industrial Production. New York: Reinhold Publishing Corporation, 1941.

Dyfyniad MLA

National Research Council (U.S.). Committee on Work in Industry. Fatigue of Workers: Its Relation to Industrial Production. Reinhold Publishing Corporation, 1941.

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