Spurrier, W. A. (1974). Natural law and the ethics of love: A new synthesis. Westminster Press.
Lua i Stíl Chicago (17ú heag.)Spurrier, William Atwell. Natural Law and the Ethics of Love: A New Synthesis. Philadelphia: Westminster Press, 1974.
Lua MLA (8ú heag.)Spurrier, William Atwell. Natural Law and the Ethics of Love: A New Synthesis. Westminster Press, 1974.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.