Cita APA (7a ed.)

Frankena, W. K. (1964). Ethics (3rd printing.). Prentice-Hall.

Cita Chicago Style (17a ed.)

Frankena, William K. Ethics. 3rd printing. Englewood Cliffs, New Jersey: Prentice-Hall, 1964.

Cita MLA (9a ed.)

Frankena, William K. Ethics. 3rd printing. Prentice-Hall, 1964.