APA-viite (7. p.)
(1964). Called of God: From Islam to Christ. Fellowship of Faith for the Moslems.
Chicago-viite (17. p.)
Called of God: From Islam to Christ. Great Britain: Fellowship of Faith for the Moslems, 1964.
MLA-viite (9. p.)
Called of God: From Islam to Christ. Fellowship of Faith for the Moslems, 1964.
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