Sellars, W., & Hospers, J. (1952). Readings in ethical theory: Selected and ed. by Wilfrid Sellars and John Hospers. Appleton, Century, Crofts.
Lua i Stíl Chicago (17ú heag.)Sellars, Wilfrid, agus John Hospers. Readings in Ethical Theory: Selected and Ed. by Wilfrid Sellars and John Hospers. New York: Appleton, Century, Crofts, 1952.
Lua MLA (8ú heag.)Sellars, Wilfrid, agus John Hospers. Readings in Ethical Theory: Selected and Ed. by Wilfrid Sellars and John Hospers. Appleton, Century, Crofts, 1952.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.