Lua APA (7ú heag.)
Zwemer, S. M. (1940). The art of listening to God: Studies in some neglected values of life, religion and missions. Zondervan Pub. House.
Lua i Stíl Chicago (17ú heag.)
Zwemer, Samuel Marinus. The Art of Listening to God: Studies in Some Neglected Values of Life, Religion and Missions. Grand Rapids: Zondervan Pub. House, 1940.
Lua MLA (9ú heag.)
Zwemer, Samuel Marinus. The Art of Listening to God: Studies in Some Neglected Values of Life, Religion and Missions. Zondervan Pub. House, 1940.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.