Dyfyniad APA

Richards, J. C. (1990). Interchange: English for international communication. Cambridge: Cambridge University Press.

Dyfyniad Arddull Chicago

Richards, Jack C. Interchange: English for International Communication. Cambridge: Cambridge University Press, 1990.

Dyfyniad MLA

Richards, Jack C. Interchange: English for International Communication. Cambridge: Cambridge University Press, 1990.

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