Aitken, W. H. M. H. (1894). The Difficulties of the Soul, or Hindrances to Believing. New York.
Chicago Style (17. basım) AtıfAitken, W. Hay M. H. The Difficulties of the Soul, or Hindrances to Believing. New York, 1894.
MLA (8th ed.) AtıfAitken, W. Hay M. H. The Difficulties of the Soul, or Hindrances to Believing. New York, 1894.
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