Não informado. (1922). Educational research bulletin. Ohio State University, Bureau of Educational Research.
Citação do estilo Chicago (17ª ed.)Não informado. Educational Research Bulletin. Columbus, Ohio: Ohio State University, Bureau of Educational Research, 1922.
Citação MLA (8ª ed.)Não informado. Educational Research Bulletin. Ohio State University, Bureau of Educational Research, 1922.
אזהרה: ציטוטים אלה לעיתים לא מדויקים ב 100%.