American Federation of Teachers. (1955). American teacher. American Federation of Teachers.
Lua i Stíl Chicago (17ú heag.)American Federation of Teachers. American Teacher. Chicago, Ill.: American Federation of Teachers, 1955.
Lua MLA (9ú heag.)American Federation of Teachers. American Teacher. American Federation of Teachers, 1955.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.