Cita APA

Richards, J. C. (1997). The language teaching matrix ([1st pub., 6th pr.].). Cambridge, United Kingdom: Cambridge University Press.

Citación estilo Chicago

Richards, Jack C. The Language Teaching Matrix. [1st pub., 6th pr.]. Cambridge, United Kingdom: Cambridge University Press, 1997.

Cita MLA

Richards, Jack C. The Language Teaching Matrix. [1st pub., 6th pr.]. Cambridge, United Kingdom: Cambridge University Press, 1997.