Cita APA (7th ed.)
Sproul, R. C. (1974). The psychology of atheism. Bethany Fellowship.
Cita Chicago (17th ed.)
Sproul, R. C. The Psychology of Atheism. Minneapolis: Bethany Fellowship, 1974.
Cita MLA (9th ed.)
Sproul, R. C. The Psychology of Atheism. Bethany Fellowship, 1974.
Atenció: Aquestes cites poden no estar 100% correctes.