APA

Widdowson H., . (2011). Practical stylistics. : Oxford university press.

Chicago

Widdowson H.G, . 2011. Practical stylistics. : Oxford university press.

Harvard

Widdowson H., . (2011). Practical stylistics. : Oxford university press.

MLA

Widdowson H.G, . Practical stylistics. : Oxford university press. 2011.