Cita APA (7a ed.)

Bolles, R. C. (1967). Theory of motivation. Harper & Row Publishers.

Cita Chicago Style (17a ed.)

Bolles, Robert C. Theory of Motivation. New York: Harper & Row Publishers, 1967.

Cita MLA (9a ed.)

Bolles, Robert C. Theory of Motivation. Harper & Row Publishers, 1967.