Cita APA (7th ed.)
Morgan, G. C. (1906). The practice of prayer. Fleming H. Revell Co.
Cita Chicago (17th ed.)
Morgan, G. Campbell. The Practice of Prayer. New York: Fleming H. Revell Co, 1906.
Cita MLA (9th ed.)
Morgan, G. Campbell. The Practice of Prayer. Fleming H. Revell Co, 1906.
Atenció: Aquestes cites poden no estar 100% correctes.