APA aipamena

Swan, M., & Walter, C. (1984). The Cambridge English Course. Cambridge: Cambridge University.

Chicago Style aipamena

Swan, Michael, và Catherine Walter. The Cambridge English Course. Cambridge: Cambridge University, 1984.

MLA aipamena

Swan, Michael, và Catherine Walter. The Cambridge English Course. Cambridge: Cambridge University, 1984.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.