Edel, A. (1955). Ethical judgment: The use of science in ethics. Free Press.
Lua i Stíl Chicago (17ú heag.)Edel, Abraham. Ethical Judgment: The Use of Science in Ethics. Glencoe, Ill: Free Press, 1955.
Lua MLA (9ú heag.)Edel, Abraham. Ethical Judgment: The Use of Science in Ethics. Free Press, 1955.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.