एपीए उद्धरण

Pauline Cullen. (2008). Cambridge vocabulary for IELTS with answers. Cambridge university press.

शिकागो स्टाइल उद्धरण

Pauline Cullen. Cambridge Vocabulary for IELTS with Answers. New Delhi: Cambridge university press, 2008.

एमएलए उद्धरण

Pauline Cullen. Cambridge Vocabulary for IELTS with Answers. Cambridge university press, 2008.