APA-viite (7. p.)

Spurrier, W. A. (1974). Natural law and the ethics of love: A new synthesis. Westminster Press.

Chicago-viite (17. p.)

Spurrier, William Atwell. Natural Law and the Ethics of Love: A New Synthesis. Philadelphia: Westminster Press, 1974.

MLA-viite (8. p.)

Spurrier, William Atwell. Natural Law and the Ethics of Love: A New Synthesis. Westminster Press, 1974.