Cita APA (7th ed.)
Jeffries, T. (1986). Singleness of purpose. Broadman Press.
Cita Chicago (17th ed.)
Jeffries, Tula. Singleness of Purpose. Nashville, Tenn.: Broadman Press, 1986.
Cita MLA (9th ed.)
Jeffries, Tula. Singleness of Purpose. Broadman Press, 1986.
Atenció: Aquestes cites poden no estar 100% correctes.