Cita APA

Gilbert, J. B. (2009). Clear speech: Pronunciation and listening comprehension in North American English (3. ed.). Cambridge: University Press.

Citación estilo Chicago

Gilbert, Judy B. Clear Speech: Pronunciation and Listening Comprehension in North American English. 3. ed. Cambridge: University Press, 2009.

Cita MLA

Gilbert, Judy B. Clear Speech: Pronunciation and Listening Comprehension in North American English. 3. ed. Cambridge: University Press, 2009.