Cita APA

Gilbert, J. B., & Gilbert, J. B. (1993). Clear speech: Pronunciation and listening comprehension in North American English (2. edition.). Cambridge, N.Y.: Cambridge University Press.

Citación estilo Chicago

Gilbert, Judy B., y Judy B. Gilbert. Clear Speech: Pronunciation and Listening Comprehension in North American English. 2. edition. Cambridge, N.Y.: Cambridge University Press, 1993.

Cita MLA

Gilbert, Judy B., y Judy B. Gilbert. Clear Speech: Pronunciation and Listening Comprehension in North American English. 2. edition. Cambridge, N.Y.: Cambridge University Press, 1993.