Cita APA (7th ed.)

Trask, R. L. (2004). Key concepts in language and linguistics. Routledge.

Cita Chicago (17th ed.)

Trask, R. L. Key Concepts in Language and Linguistics. London: Routledge, 2004.

Cita MLA (9th ed.)

Trask, R. L. Key Concepts in Language and Linguistics. Routledge, 2004.