Ruggiero, V. R. (1992). Thinking critically about ethical issues (3rd ed.). Mayfield.
Chicago (17e ed.) BronvermeldingRuggiero, Vincent Ryan. Thinking Critically About Ethical Issues. 3rd ed. Mountain View, Calif.: Mayfield, 1992.
MLA (8e ed.) BronvermeldingRuggiero, Vincent Ryan. Thinking Critically About Ethical Issues. 3rd ed. Mayfield, 1992.
Let op: Deze citaties zijn niet altijd 100% accuraat.