Cita APA (7th ed.)

GILBERT, J. B. (1984). Clear speech: Pronunciation and listening comprehensionin American English. Cambridge University Press.

Cita Chicago (17th ed.)

GILBERT, Judy B. Clear Speech: Pronunciation and Listening Comprehensionin American English. Cambridge: Cambridge University Press, 1984.

Cita MLA (9th ed.)

GILBERT, Judy B. Clear Speech: Pronunciation and Listening Comprehensionin American English. Cambridge University Press, 1984.