APA Citatie

Rogerson, P., & Gilbert, J. B. (1990). Speaking clearly: Pronunciation and listening comprehension for learners of English : teacher's book. Cambridge, England ; Melbourne, Vic.: Cambridge University Press.

Chicago Style citaat

Rogerson, Pamela., en Judy B. Gilbert. Speaking Clearly: Pronunciation and Listening Comprehension for Learners of English : Teacher's Book. Cambridge, England ; Melbourne, Vic.: Cambridge University Press, 1990.

MLA citatie

Rogerson, Pamela., en Judy B. Gilbert. Speaking Clearly: Pronunciation and Listening Comprehension for Learners of English : Teacher's Book. Cambridge, England ; Melbourne, Vic.: Cambridge University Press, 1990.