Cita APA (7a ed.)

Titus, H. H., & Keeton, M. (1966). Ethics for today (4th ed.). American Book Company.

Cita Chicago Style (17a ed.)

Titus, Harold H., y Morris Keeton. Ethics for Today. 4th ed. New York: American Book Company, 1966.

Cita MLA (9a ed.)

Titus, Harold H., y Morris Keeton. Ethics for Today. 4th ed. American Book Company, 1966.