Cita APA

Gilbert, J. B. (2012). Clear speech: Pronunciation and listening comprehension in North American English (4. edition.). Cambridge: Cambridge University Press.

Citación estilo Chicago

Gilbert, Judy B. Clear Speech: Pronunciation and Listening Comprehension in North American English. 4. edition. Cambridge: Cambridge University Press, 2012.

Cita MLA

Gilbert, Judy B. Clear Speech: Pronunciation and Listening Comprehension in North American English. 4. edition. Cambridge: Cambridge University Press, 2012.