Widdowson, H. G. (1996). Linguistics. Oxford: Oxford University Press.
Trích dẫn kiểu ChicagoWiddowson, H. G. Linguistics. Oxford: Oxford University Press, 1996.
MLA引文Widdowson, H. G. Linguistics. Oxford: Oxford University Press, 1996.
警告：這些引文格式不一定是100％准確.