Não informado. (1937). Harvard Educational Review. Harvard University, Graduate School of Education.
Chicago-referens (17:e uppl.)Não informado. Harvard Educational Review. Cambridge, Mass: Harvard University, Graduate School of Education, 1937.
MLA-referens (8:e uppl.)Não informado. Harvard Educational Review. Harvard University, Graduate School of Education, 1937.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.