Dyfyniad APA

Spence, J. T. (1983). Achievement and achievement motives: Psychological and sociological approaches. W.H. Freeman.

Dyfyniad Arddull Chicago

Spence, Janet T. Achievement and Achievement Motives: Psychological and Sociological Approaches. San Francisco: W.H. Freeman, 1983.

Dyfyniad MLA

Spence, Janet T. Achievement and Achievement Motives: Psychological and Sociological Approaches. W.H. Freeman, 1983.

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