APA-čujuhus (7. p.)
Helms, E. E. (1923). God in history. Light and Life Press.
Chicago-čujuhus (17. p.)
Helms, Elmer Ellsworth. God in History. Washington Boulevard: Light and Life Press, 1923.
MLA-čujuhus (9. p.)
Helms, Elmer Ellsworth. God in History. Light and Life Press, 1923.
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