APA (7th ed.) Citation

Smullyan, R. M. (2003). Who knows?: A study of religious consciousness. Indiana University Press.

Chicago Style (17th ed.) Citation

Smullyan, Raymond M. Who Knows?: A Study of Religious Consciousness. Bloomington: Indiana University Press, 2003.

MLA (8th ed.) Citation

Smullyan, Raymond M. Who Knows?: A Study of Religious Consciousness. Indiana University Press, 2003.

Warning: These citations may not always be 100% accurate.