APA-viite (7. p.)
Winter, D. R. (1969). Theological Education by Extension. William Carey Library.
Chicago-viite (17. p.)
Winter, D. Ralph. Theological Education by Extension. South Pasadena: William Carey Library, 1969.
MLA-viite (9. p.)
Winter, D. Ralph. Theological Education by Extension. William Carey Library, 1969.
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