Jackson, E. N. (1956). How to preach to people´s needs. Abingdon.
Cita Chicago (17th ed.)Jackson, Edgar N. How to Preach to People´s Needs. New York: Abingdon, 1956.
Cita MLA (9th ed.)Jackson, Edgar N. How to Preach to People´s Needs. Abingdon, 1956.
Atenció: Aquestes cites poden no estar 100% correctes.