Cita APA

Gilbert, J. B. Clear speech: Pronunciation and listening comprehension in north american english (Third edition.). New York: Cambridge University Press.

Citación estilo Chicago

Gilbert, Judy B.. Clear Speech: Pronunciation and Listening Comprehension in North American English. Third edition. New York: Cambridge University Press.

Cita MLA

Gilbert, Judy B.. Clear Speech: Pronunciation and Listening Comprehension in North American English. Third edition. New York: Cambridge University Press.