एपीए उद्धरण

Van Gigeh, J. (1978). Applied General Systems Theory. Harper and Row.

शिकागो स्टाइल उद्धरण

Van Gigeh, John.P. Applied General Systems Theory. New York: Harper and Row, 1978.

एमएलए उद्धरण

Van Gigeh, John.P. Applied General Systems Theory. Harper and Row, 1978.