Cita APA

Leech, G., & Svartvik, J. (1975). Communicative grammar of English. Longman.

Chicago Edition Citation

Leech, Geoffrey, i Jan Svartvik. Communicative Grammar of English. London: Longman, 1975.

Cita MLA

Leech, Geoffrey, i Jan Svartvik. Communicative Grammar of English. Longman, 1975.