Cita APA (7a ed.)

Leech, G. N., & Svartvik, J. (2002). A communicative grammar of English (3rd ed.). Longman.

Cita Chicago Style (17a ed.)

Leech, Geoffrey N., y Jan Svartvik. A Communicative Grammar of English. 3rd ed. London: Longman, 2002.

Cita MLA (9a ed.)

Leech, Geoffrey N., y Jan Svartvik. A Communicative Grammar of English. 3rd ed. Longman, 2002.