Trim, J. L. M. (1975). English pronunciation illustrated: Cassette 1. Cambridge [Eng.] ; New York: Cambridge University Press.
Chicago Style aipamenaTrim, J. L. M. English Pronunciation Illustrated: Cassette 1. Cambridge [Eng.] ; New York: Cambridge University Press, 1975.
MLA aipamenaTrim, J. L. M. English Pronunciation Illustrated: Cassette 1. Cambridge [Eng.] ; New York: Cambridge University Press, 1975.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.