Trích dẫn APA

Widdowson, H. (2003). Linguiststics (Seventh impression.). Anh: Oxford University.

Trích dẫn kiểu Chicago

Widdowson, H.G. Linguiststics. Seventh impression. Anh: Oxford University, 2003.

MLA Trích dẫn

Widdowson, H.G. Linguiststics. Seventh impression. Anh: Oxford University, 2003.

Warning: These citations may not always be 100% accurate.