Cita APA (7th ed.)

- & TILLMAN, F. A. [. (1967). Introductory philosophy. Harper and Row Pub.

Cita Chicago (17th ed.)

- i Frank A. [dkk TILLMAN. Introductory Philosophy. New York: Harper and Row Pub, 1967.

Cita MLA (9th ed.)

- i Frank A. [dkk TILLMAN. Introductory Philosophy. Harper and Row Pub, 1967.