Cita APA

O'Connor, J. D. 1. (1980). Better english pronunciation. (2. ed.). Cambridge: Cambridge University Press.

Citación estilo Chicago

O'Connor, Joseph Desmond 1944-. Better English Pronunciation. 2. ed. Cambridge: Cambridge University Press, 1980.

Cita MLA

O'Connor, Joseph Desmond 1944-. Better English Pronunciation. 2. ed. Cambridge: Cambridge University Press, 1980.