Cita APA (7th ed.)

Ruggiero, V. R. (1992). Thinking critically about ethical issues (3rd ed.). Mayfield.

Cita Chicago (17th ed.)

Ruggiero, Vincent Ryan. Thinking Critically About Ethical Issues. 3rd ed. Mountain View, Calif.: Mayfield, 1992.

Cita MLA (8th ed.)

Ruggiero, Vincent Ryan. Thinking Critically About Ethical Issues. 3rd ed. Mayfield, 1992.