Cita APA (7th ed.)

Wood, R. (1962). Principles and problems of ethics (1a. ed.). Herder.

Cita Chicago (17th ed.)

Wood, Robert. Principles and Problems of Ethics. 1a. ed. Saint Louis: Herder, 1962.

Cita MLA (9th ed.)

Wood, Robert. Principles and Problems of Ethics. 1a. ed. Herder, 1962.