Layman, C. S. (2007). Letters to Doubting Thomas: A case for the existence of God. Oxford University Press.
Chicago Style (17. basım) AtıfLayman, Charles S. Letters to Doubting Thomas: A Case for the Existence of God. New York: Oxford University Press, 2007.
MLA (9th ed.) AtıfLayman, Charles S. Letters to Doubting Thomas: A Case for the Existence of God. Oxford University Press, 2007.
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