Olisah, O. (1950). The statements of Hitler before the world war: Drama: his last words and disappearance. Published by Okenwa Publications.
Chicago-viite (17. p.)Olisah, Okenwa. The Statements of Hitler Before the World War: Drama: His Last Words and Disappearance. Onitsha [Nigeria]: Published by Okenwa Publications, 1950.
MLA-viite (8. p.)Olisah, Okenwa. The Statements of Hitler Before the World War: Drama: His Last Words and Disappearance. Published by Okenwa Publications, 1950.
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