APA (7e ed.) Bronvermelding

Cambridge ESOL. (2006). examination papers from the University of Cambridge ESOL examinations—English for speakers of other languages: Cambridge ESOL.

Chicago (17e ed.) Bronvermelding

Cambridge ESOL. Examination Papers from the University of Cambridge ESOL Examinations—English for Speakers of Other Languages: Cambridge ESOL. Cambridge University Press, 2006.

MLA (9e ed.) Bronvermelding

Cambridge ESOL. Examination Papers from the University of Cambridge ESOL Examinations—English for Speakers of Other Languages: Cambridge ESOL. 2006.