APA

Radford A. e. a., . (1999). Linguistics: An introduction. : Cambridge University Press, Cambridge.

Chicago

Radford Andrew et al, . 1999. Linguistics: An introduction. : Cambridge University Press, Cambridge.

Harvard

Radford A. e. a., . (1999). Linguistics: An introduction. : Cambridge University Press, Cambridge.

MLA

Radford Andrew et al, . Linguistics: An introduction. : Cambridge University Press, Cambridge. 1999.