एपीए उद्धरण

Wells, S. J. (1969). International econmics. London: George Allen and Uwin.

शिकागो स्टाइल उद्धरण

Wells, Sidney J. International Econmics. London: George Allen and Uwin, 1969.

एमएलए उद्धरण

Wells, Sidney J. International Econmics. London: George Allen and Uwin, 1969.