Não informado. (1937). Harvard Educational Review. Harvard University, Graduate School of Education.
Chicago (17e ed.) BronvermeldingNão informado. Harvard Educational Review. Cambridge, Mass: Harvard University, Graduate School of Education, 1937.
MLA (8e ed.) BronvermeldingNão informado. Harvard Educational Review. Harvard University, Graduate School of Education, 1937.
Let op: Deze citaties zijn niet altijd 100% accuraat.