APA aipamena

(1997). Cambridge proficiency examination practice 1: University of Cambridge local examinations syndicate. Nxb Tp.HCM.

Chicago Style aipamena

Cambridge Proficiency Examination Practice 1: University of Cambridge Local Examinations Syndicate. Nxb Tp.HCM, 1997.

MLA aipamena

Cambridge Proficiency Examination Practice 1: University of Cambridge Local Examinations Syndicate. Nxb Tp.HCM, 1997.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.