Cita APA (7th ed.)

LEECH, G., & SVARTVIK, J. (1995). A communicative grammar of english.-- ed.2. Longman.

Cita Chicago (17th ed.)

LEECH, Geoffirey, i Jan SVARTVIK. A Communicative Grammar of English.-- Ed.2. London: Longman, 1995.

Cita MLA (9th ed.)

LEECH, Geoffirey, i Jan SVARTVIK. A Communicative Grammar of English.-- Ed.2. Longman, 1995.