APA-viite (7. p.)
Engstrom, T. W. (1978). What in the world is God doing: The new face of missions. Word.
Chicago-viite (17. p.)
Engstrom, Ted W. What in the World Is God Doing: The New Face of Missions. Texas: Word, 1978.
MLA-viite (9. p.)
Engstrom, Ted W. What in the World Is God Doing: The New Face of Missions. Word, 1978.
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