Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

Radford, Andrew. Linguistics: An Introduction. Cambridge, [England]: Cambridge University Press, 1999.

Cita MLA (9th ed.)

Radford, Andrew. Linguistics: An Introduction. Cambridge University Press, 1999.