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.
Chicago Style CitationGilbert, Judy B., and Judy B. Gilbert. Clear Speech: Pronunciation and Listening Comprehension in North American English. 2. edition. Cambridge, N.Y.: Cambridge University Press, 1993.
MLA CitationGilbert, Judy B., and Judy B. Gilbert. Clear Speech: Pronunciation and Listening Comprehension in North American English. 2. edition. Cambridge, N.Y.: Cambridge University Press, 1993.
Warning: These citations may not always be 100% accurate.