एपीए उद्धरण

(2001). Pronucation plus Class audio CDs. Cambridge: Cambridge University Press.

शिकागो स्टाइल उद्धरण

Pronucation Plus Class Audio CDs. Cambridge: Cambridge University Press, 2001.

एमएलए उद्धरण

Pronucation Plus Class Audio CDs. Cambridge: Cambridge University Press, 2001.