APA (7 वां संस्करण) प्रशस्ति पत्र

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

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

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

एमएलए (8वां संस्करण) प्रशस्ति पत्र

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