Ruggiero, V. R. (2011). Thinking critically about ethical issues (8th ed.). Dubuque: McGraw-Hill.
Chicago Style aipamenaRuggiero, Vincent Ryan. Thinking Critically About Ethical Issues. 8th ed. Dubuque: McGraw-Hill, 2011.
MLA aipamenaRuggiero, Vincent Ryan. Thinking Critically About Ethical Issues. 8th ed. Dubuque: McGraw-Hill, 2011.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.