Lewy, E. (1947). English: A handbook for the foreigner. Longman.
Lua i Stíl Chicago (17ú heag.)Lewy, Erich. English: A Handbook for the Foreigner. London: Longman, 1947.
Lua MLA (9ú heag.)Lewy, Erich. English: A Handbook for the Foreigner. Longman, 1947.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.