Não informado. (1963). Sociology of education. American Sociological Association.
Lua i Stíl Chicago (17ú heag.)Não informado. Sociology of Education. Albany, NY: American Sociological Association, 1963.
Lua MLA (8ú heag.)Não informado. Sociology of Education. American Sociological Association, 1963.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.