Não informado. (1922). Educational research bulletin. Ohio State University, Bureau of Educational Research.
Cita Chicago Style (17a ed.)Não informado. Educational Research Bulletin. Columbus, Ohio: Ohio State University, Bureau of Educational Research, 1922.
Cita MLA (8a ed.)Não informado. Educational Research Bulletin. Ohio State University, Bureau of Educational Research, 1922.
Precaución: Estas citas no son 100% exactas.