Cita APA (7th ed.)

Widdowson, H. G. (1971). Language teaching texts: A manual for teachers. Oxford University Press.

Cita Chicago (17th ed.)

Widdowson, H. G. Language Teaching Texts: A Manual for Teachers. Oxford: Oxford University Press, 1971.

Cita MLA (9th ed.)

Widdowson, H. G. Language Teaching Texts: A Manual for Teachers. Oxford University Press, 1971.