APA (7th ed.) Citation

(1997). Cambridge key English test 1: Examination papers from the University of Cambridge Local Examinations Syndicate (1ª ed.).

Chicago Style (17th ed.) Citation

Cambridge Key English Test 1: Examination Papers from the University of Cambridge Local Examinations Syndicate. 1ª ed. Cambridge, 1997.

MLA (9th ed.) Citation

Cambridge Key English Test 1: Examination Papers from the University of Cambridge Local Examinations Syndicate. 1ª ed. 1997.