APA način citiranja (7. izdanje)
Smullyan, R. M. (2003). Who knows?: A study of religious consciousness. Indiana University Press.
Čikaški stil citiranja (17. izdanje)
Smullyan, Raymond M. Who Knows?: A Study of Religious Consciousness. Bloomington: Indiana University Press, 2003.
MLA način citiranja (9. izdanje)
Smullyan, Raymond M. Who Knows?: A Study of Religious Consciousness. Indiana University Press, 2003.
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