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.
MLA引文Rogerson, Pamela, và Judy B. Gilbert. Speaking Clearly: Pronunciation and Listening Comprehension for Learners of English. Cambridge: Cambridge University, 1990.
警告：这些引文格式不一定是100％准确.