Cambridge University Press. (2010). Cambridge key english test 1: With answers : examinations papers from University of Cambridge ESOL examinations : english for speakers of other languages ([New ed., 3rd printing 2010].). Cambridge, United Kingdom: Cambridge University Press.
Citación estilo ChicagoCambridge University Press. Cambridge Key English Test 1: With Answers : Examinations Papers From University of Cambridge ESOL Examinations : English for Speakers of Other Languages. [New ed., 3rd printing 2010]. Cambridge, United Kingdom: Cambridge University Press, 2010.
Cita MLACambridge University Press. Cambridge Key English Test 1: With Answers : Examinations Papers From University of Cambridge ESOL Examinations : English for Speakers of Other Languages. [New ed., 3rd printing 2010]. Cambridge, United Kingdom: Cambridge University Press, 2010.