APA-viite (7. p.)

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

Chicago-viite (17. p.)

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

MLA-viite (8. p.)

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