Citazione Stile APA (7a Edizione)

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

Citazione stile Chigago Style (17a edizione)

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

Citatione MLA (9a ed.)

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