Schell, R. E. (1975). Developmental psychology today (2nd ed.). Random House.
Chicago (17e ed.) BronvermeldingSchell, Robert E. Developmental Psychology Today. 2nd ed. San Diego: Random House, 1975.
MLA (9e ed.) BronvermeldingSchell, Robert E. Developmental Psychology Today. 2nd ed. Random House, 1975.
Let op: Deze citaties zijn niet altijd 100% accuraat.