एपीए उद्धरण

(1997). Further ahead: A business English video (video teacher's guide). Cambridge: Cambridge University Press.

शिकागो स्टाइल उद्धरण

Further Ahead: A Business English Video (video Teacher's Guide). Cambridge: Cambridge University Press, 1997.

एमएलए उद्धरण

Further Ahead: A Business English Video (video Teacher's Guide). Cambridge: Cambridge University Press, 1997.