Não informado. (1962). Social studies review. California Council for the Social Studies.
Lua i Stíl Chicago (17ú heag.)Não informado. Social Studies Review. Sacramento, Calif: California Council for the Social Studies, 1962.
Lua MLA (8ú heag.)Não informado. Social Studies Review. California Council for the Social Studies, 1962.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.