Lewis, M. (1942). Language in school. Univ. of London Press.
Lua i Stíl Chicago (17ú heag.)Lewis, M.M. Language in School. Bickley: Univ. of London Press, 1942.
Lua MLA (8ú heag.)Lewis, M.M. Language in School. Univ. of London Press, 1942.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.