APA引文

Widdowson, H. G. (2003). Linguistics. Oxford: Oxford University Press.

Trích dẫn kiểu Chicago

Widdowson, H. G. Linguistics. Oxford: Oxford University Press, 2003.

MLA引文

Widdowson, H. G. Linguistics. Oxford: Oxford University Press, 2003.

警告：這些引文格式不一定是100％准確.