Não informado. (1922). Educational research bulletin. Ohio State University, Bureau of Educational Research.
Čikaški stil citiranja (17. izdanje)Não informado. Educational Research Bulletin. Columbus, Ohio: Ohio State University, Bureau of Educational Research, 1922.
MLA način citiranja (8. izdanje)Não informado. Educational Research Bulletin. Ohio State University, Bureau of Educational Research, 1922.
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