APA-Zitierstil (7. Ausg.)

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

Chicago-Zitierstil (17. Ausg.)

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

MLA-Zitierstil (9. Ausg.)

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