APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

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

MLA (9th ed.) Citation

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