APA-Zitierstil (7. Ausg.)

(2013). Cambridge IELTS 9: Authentic examination papers from Cambridge ESOL ; [self-study pack ; with answers] (1. publ.). Cambridge Univ. Press.

Chicago-Zitierstil (17. Ausg.)

Cambridge IELTS 9: Authentic Examination Papers from Cambridge ESOL ; [self-study Pack ; with Answers]. 1. publ. Cambridge [u.a.]: Cambridge Univ. Press, 2013.

MLA-Zitierstil (9. Ausg.)

Cambridge IELTS 9: Authentic Examination Papers from Cambridge ESOL ; [self-study Pack ; with Answers]. 1. publ. Cambridge Univ. Press, 2013.