Koestler, A. (1964). The Act of Creation. New York: Macmillan Co..
Trích dẫn kiểu ChicagoKoestler, Arthur. The Act of Creation. New York: Macmillan Co., 1964.
Deismireacht MLAKoestler, Arthur. The Act of Creation. New York: Macmillan Co., 1964.
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