APA引文

Widdowson, H. (2000). Linguistics (Fifth impression.). Oxford: Oxford University.

Trích dẫn kiểu Chicago

Widdowson, H.G. Linguistics. Fifth impression. Oxford: Oxford University, 2000.

MLA引文

Widdowson, H.G. Linguistics. Fifth impression. Oxford: Oxford University, 2000.

警告：這些引文格式不一定是100％准確.