Não informado. (1922). Educational research bulletin. Ohio State University, Bureau of Educational Research.
Lua i Stíl Chicago (17ú heag.)Não informado. Educational Research Bulletin. Columbus, Ohio: Ohio State University, Bureau of Educational Research, 1922.
Lua MLA (8ú heag.)Não informado. Educational Research Bulletin. Ohio State University, Bureau of Educational Research, 1922.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.