Não informado. (1937). Harvard Educational Review. Harvard University, Graduate School of Education.
Chicago-Zitierstil (17. Ausg.)Não informado. Harvard Educational Review. Cambridge, Mass: Harvard University, Graduate School of Education, 1937.
MLA-Zitierstil (8. Ausg.)Não informado. Harvard Educational Review. Harvard University, Graduate School of Education, 1937.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.