एपीए उद्धरण

Willis, F. R. (1987). Western civilization: A brief introduction. New York: Macmillan.

शिकागो स्टाइल उद्धरण

Willis, F. Roy. Western Civilization: A Brief Introduction. New York: Macmillan, 1987.

एमएलए उद्धरण

Willis, F. Roy. Western Civilization: A Brief Introduction. New York: Macmillan, 1987.