(2013). Cambridge IELTS 6: Examination papers from university of cambridge ESOL examinations : Emglish for speakers of other languages. Cambridge university press.
Chicago Edition CitationCambridge IELTS 6: Examination Papers from University of Cambridge ESOL Examinations : Emglish for Speakers of Other Languages. Cambridge university press, 2013.
MLA引文Cambridge IELTS 6: Examination Papers from University of Cambridge ESOL Examinations : Emglish for Speakers of Other Languages. Cambridge university press, 2013.
警告：這些引文格式不一定是100％准確.