Não informado. (1930). Journal of Higher Education. Ohio State University, Bureau of Educational Research.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. Journal of Higher Education. Columbus, Ohio: Ohio State University, Bureau of Educational Research, 1930.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. Journal of Higher Education. Ohio State University, Bureau of Educational Research, 1930.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.