(2011). Cambridge key English test with answers: Examination papers from University of Cambridge ESOL examinations: English for speakers of other languagé. Cambridge: Cambridge University Press.
Chicago-стиль цитированияCambridge Key English Test With Answers: Examination Papers From University of Cambridge ESOL Examinations: English for Speakers of Other Languagé. Cambridge: Cambridge University Press, 2011.
MLA-цитированиеCambridge Key English Test With Answers: Examination Papers From University of Cambridge ESOL Examinations: English for Speakers of Other Languagé. Cambridge: Cambridge University Press, 2011.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.