एपीए उद्धरण

Cambridge, U. P. (2013). Cambridge English IELTS 9: Authentic examination papers from Cambridge ESOL with Answers.

शिकागो स्टाइल उद्धरण

Cambridge, University Press. Cambridge English IELTS 9: Authentic Examination Papers From Cambridge ESOL With Answers. 2013.

एमएलए उद्धरण

Cambridge, University Press. Cambridge English IELTS 9: Authentic Examination Papers From Cambridge ESOL With Answers. 2013.