Rogerson, P., & Gilbert, J. B. (1990). Speaking Clearly: Pronunciation and Listening Comprehension for Learners of English. Cambridge: Cambridge University.
Trích dẫn kiểu ChicagoRogerson, Pamela, và Judy B. Gilbert. Speaking Clearly: Pronunciation and Listening Comprehension for Learners of English. Cambridge: Cambridge University, 1990.
Deismireacht MLARogerson, Pamela, và Judy B. Gilbert. Speaking Clearly: Pronunciation and Listening Comprehension for Learners of English. Cambridge: Cambridge University, 1990.
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