एपीए उद्धरण

(1989). Listening to TOEFL: An Official TOEFL Study Aid. Princeton: Educational testing service.

शिकागो स्टाइल उद्धरण

Listening to TOEFL: An Official TOEFL Study Aid. Princeton: Educational testing service, 1989.

एमएलए उद्धरण

Listening to TOEFL: An Official TOEFL Study Aid. Princeton: Educational testing service, 1989.