एपीए उद्धरण

Wheeler, J. O. (1981). Economic geography. New York: Wiley.

शिकागो स्टाइल उद्धरण

Wheeler, James O. Economic Geography. New York: Wiley, 1981.

एमएलए उद्धरण

Wheeler, James O. Economic Geography. New York: Wiley, 1981.