Lua APA (7ú heag.)
Nienkirchen, C. (1992). A.B. Simpson and the Pentecostal movement: A study in continuity, crisis, and change. Hendrickson.
Lua i Stíl Chicago (17ú heag.)
Nienkirchen, Charles. A.B. Simpson and the Pentecostal Movement: A Study in Continuity, Crisis, and Change. Peabody, Mass.: Hendrickson, 1992.
Lua MLA (9ú heag.)
Nienkirchen, Charles. A.B. Simpson and the Pentecostal Movement: A Study in Continuity, Crisis, and Change. Hendrickson, 1992.
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