Não informado. (1951). Educational Theory. John Dewey Society.
Chicago (17e ed.) BronvermeldingNão informado. Educational Theory. Urbana, Ill: John Dewey Society, 1951.
MLA (8e ed.) BronvermeldingNão informado. Educational Theory. John Dewey Society, 1951.
Let op: Deze citaties zijn niet altijd 100% accuraat.