Lua APA (7ú heag.)
Leech, G., & Svartvik, J. (1975). A communicative grammar of English. Longman.
Lua i Stíl Chicago (17ú heag.)
Leech, Geoffrey, agus Jan Svartvik. A Communicative Grammar of English. England: Longman, 1975.
Lua MLA (9ú heag.)
Leech, Geoffrey, agus Jan Svartvik. A Communicative Grammar of English. Longman, 1975.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.