Gaya APA

Rogerson, Pamela, Judy B. Gilbert. (1997). Speaking clearly . Cambridge: Cambridge University Press.

Gaya Chicago

Rogerson, Pamela, Judy B. Gilbert. Speaking clearly. Cambridge: Cambridge University Press, 1997. Text.

Gaya MLA

Rogerson, Pamela, Judy B. Gilbert. Speaking clearly. Cambridge: Cambridge University Press, 1997. Text.

Gaya Turabian

Rogerson, Pamela, Judy B. Gilbert. Speaking clearly. Cambridge: Cambridge University Press, 1997. Print.