Cita APA (7a ed.)

Widdowson, H. (1971). Language Teaching texts. Oxford University Press.

Cita Chicago Style (17a ed.)

Widdowson, H.G. Language Teaching Texts. London: Oxford University Press, 1971.

Cita MLA (8a ed.)

Widdowson, H.G. Language Teaching Texts. Oxford University Press, 1971.