APA aipamena

O'Connor, J. (1977). Better English Pronounciation. Cambridge University Press.

Chicago Style aipamena

O'Connor, J.D. Better English Pronounciation. London: Cambridge University Press, 1977.

MLA aipamena

O'Connor, J.D. Better English Pronounciation. Cambridge University Press, 1977.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.