Citace podle APA

Gilbert, J. B., & Judy B. Gilbert. (1993). Clear speech: Pronunciation and Listening Comprehension in North American English : student's book. Cambridge: Cambridge University Press.

Styl Chicago

Gilbert, Judy B., a Judy B. Gilbert. Clear Speech: Pronunciation and Listening Comprehension in North American English : Student's Book. Cambridge: Cambridge University Press, 1993.

Citace podle MLA

Gilbert, Judy B., a Judy B. Gilbert. Clear Speech: Pronunciation and Listening Comprehension in North American English : Student's Book. Cambridge: Cambridge University Press, 1993.

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