(2006). Cambridge key English test with answers: Examination papers from University of Cambridge ESOL examinations: English for speakers of other languagé. Cambridge: Cambridge University Press.
Citação norma ChicagoCambridge Key English Test With Answers: Examination Papers From University of Cambridge ESOL Examinations: English for Speakers of Other Languagé. Cambridge: Cambridge University Press, 2006.
Citação norma MLACambridge Key English Test With Answers: Examination Papers From University of Cambridge ESOL Examinations: English for Speakers of Other Languagé. Cambridge: Cambridge University Press, 2006.
Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.