Dyfyniad APA

Watts, F. (1921). An introduction to the psychological problems of industry. Allen & Unwin.

Dyfyniad Arddull Chicago

Watts, Frank. An Introduction to the Psychological Problems of Industry. London: Allen & Unwin, 1921.

Dyfyniad MLA

Watts, Frank. An Introduction to the Psychological Problems of Industry. Allen & Unwin, 1921.

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