Não informado. (1922). Educational research bulletin. Ohio State University, Bureau of Educational Research.
Chicago-Zitierstil (17. Ausg.)Não informado. Educational Research Bulletin. Columbus, Ohio: Ohio State University, Bureau of Educational Research, 1922.
MLA-Zitierstil (8. Ausg.)Não informado. Educational Research Bulletin. Ohio State University, Bureau of Educational Research, 1922.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.