Willis, F. R. (1987). Western civilization: A brief introduction. New York: Macmillan.
Trích dẫn kiểu ChicagoWillis, F. Roy. Western Civilization: A Brief Introduction. New York: Macmillan, 1987.
MLA CitationWillis, F. Roy. Western Civilization: A Brief Introduction. New York: Macmillan, 1987.
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