Appelbaum, D., & Lawton, S. V. (1990). Ethics and the professions. Prentice-Hall.
Lua i Stíl Chicago (17ú heag.)Appelbaum, David, agus Sarah V. Lawton. Ethics and the Professions. Englewood Cliffs, N.J: Prentice-Hall, 1990.
Lua MLA (9ú heag.)Appelbaum, David, agus Sarah V. Lawton. Ethics and the Professions. Prentice-Hall, 1990.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.