APA ציטוט

(2012). Cambridge English: key 6 with answers: Official examination papers from university of cambridge. ESOL Examinations. New York: Cambridge University press.

Trích dẫn kiểu Chicago

Cambridge English: Key 6 With Answers: Official Examination Papers From University of Cambridge. ESOL Examinations. New York: Cambridge University press, 2012.

ציטוט MLA

Cambridge English: Key 6 With Answers: Official Examination Papers From University of Cambridge. ESOL Examinations. New York: Cambridge University press, 2012.