Não informado. (1967). History Teacher. Society for History Education.
Lua i Stíl Chicago (17ú heag.)Não informado. History Teacher. Long Beach, Calif: Society for History Education, 1967.
Lua MLA (8ú heag.)Não informado. History Teacher. Society for History Education, 1967.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.