Cita APA (7a ed.)

Peters, R. S. (1974). The concept of motivation (2nd ed.). Routledge & Kegan Paul [etc.].

Cita Chicago Style (17a ed.)

Peters, R. S. The Concept of Motivation. 2nd ed. London [etc.]: Routledge & Kegan Paul [etc.], 1974.

Cita MLA (9a ed.)

Peters, R. S. The Concept of Motivation. 2nd ed. Routledge & Kegan Paul [etc.], 1974.