Cita APA (7a ed.)
Richards, J. C. (1994). Interchange: Video Activity Book. Cambridge University Press.
Cita Chicago Style (17a ed.)
Richards, Jack C. Interchange: Video Activity Book. United States: Cambridge University Press, 1994.
Cita MLA (9a ed.)
Richards, Jack C. Interchange: Video Activity Book. Cambridge University Press, 1994.
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