APA citiranje

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

Trích dẫn kiểu Chicago

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

MLA citiranje

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

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