APA (7e ed.) Bronvermelding

(1998). Cambridge Proficiency Examination Practice 6; University of Cambridge Local Examinations Syndicate: Teacher's book. Cambridge, Cambridge University Press, 1998.

Chicago (17e ed.) Bronvermelding

Cambridge Proficiency Examination Practice 6; University of Cambridge Local Examinations Syndicate: Teacher's Book. Cambridge, Cambridge University Press, 1998, 1998.

MLA (9e ed.) Bronvermelding

Cambridge Proficiency Examination Practice 6; University of Cambridge Local Examinations Syndicate: Teacher's Book. Cambridge, Cambridge University Press, 1998, 1998.