APA-čujuhus (7. p.)
Morgan, G. C. (1906). The practice of prayer. Fleming H. Revell Co.
Chicago-čujuhus (17. p.)
Morgan, G. Campbell. The Practice of Prayer. New York: Fleming H. Revell Co, 1906.
MLA-čujuhus (9. p.)
Morgan, G. Campbell. The Practice of Prayer. Fleming H. Revell Co, 1906.
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