APA (7. basım) Alıntı

Leech, G. (1973). A communicative grammar of English. Longman.

Chicago Style (17. basım) Atıf

Leech, Geoffrey. A Communicative Grammar of English. London: Longman, 1973.

MLA (9th ed.) Atıf

Leech, Geoffrey. A Communicative Grammar of English. Longman, 1973.