Não informado. (1968). Contemporary education. Indiana University, School of Education.
Chicago (17e ed.) BronvermeldingNão informado. Contemporary Education. Terre Haute, Ind: Indiana University, School of Education, 1968.
MLA (8e ed.) BronvermeldingNão informado. Contemporary Education. Indiana University, School of Education, 1968.
Let op: Deze citaties zijn niet altijd 100% accuraat.