Citazione Stile APA (7a Edizione)

Johnson, O. A., & Johnson,Oliver A. (1984). Ethics: Selections from classical and contemporay Writers (Fifth edition.). Holt, Richard and Winston.

Citazione stile Chigago Style (17a edizione)

Johnson, Oliver A., e Johnson,Oliver A. Ethics: Selections from Classical and Contemporay Writers. Fifth edition. New York: Holt, Richard and Winston, 1984.

Citatione MLA (9a ed.)

Johnson, Oliver A., e Johnson,Oliver A. Ethics: Selections from Classical and Contemporay Writers. Fifth edition. Holt, Richard and Winston, 1984.