Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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