Παραπομπή APA

(2013). Cambridge IELTS 4: Examination papers from University of Cambridge ESOL examinations : English for speakers of other languages. Cambridge university press.

Παραπομπή Chicago Style

Cambridge IELTS 4: Examination Papers from University of Cambridge ESOL Examinations : English for Speakers of Other Languages. Cambridge university press, 2013.

Παραπομπή MLA

Cambridge IELTS 4: Examination Papers from University of Cambridge ESOL Examinations : English for Speakers of Other Languages. Cambridge university press, 2013.