APA (7th ed.) Citation

Tillman, F. A., Tillman, F., & O'Connor, J. (1967). Introductory philosophy. Harper and Row.

Chicago Style (17th ed.) Citation

Tillman, Frank A., Frank Tillman, and John O'Connor. Introductory Philosophy. New York: Harper and Row, 1967.

MLA (9th ed.) Citation

Tillman, Frank A., et al. Introductory Philosophy. Harper and Row, 1967.