APA (7th ed.) Citation

Peters, R. S. (1969). The concept of motivation (2nd ed.). Routledge & K. Paul Humanities P.

Chicago Style (17th ed.) Citation

Peters, R. S. The Concept of Motivation. 2nd ed. London, New York: Routledge & K. Paul Humanities P, 1969.

MLA (9th ed.) Citation

Peters, R. S. The Concept of Motivation. 2nd ed. Routledge & K. Paul Humanities P, 1969.