Dyfyniad APA

Richards, J. C., & Jack C.Richards. (1990). The language teaching matrix. New York: Cambridge University Press.

Dyfyniad Arddull Chicago

Richards, Jack C., và Jack C.Richards. The Language Teaching Matrix. New York: Cambridge University Press, 1990.

Dyfyniad MLA

Richards, Jack C., và Jack C.Richards. The Language Teaching Matrix. New York: Cambridge University Press, 1990.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.