APA (7e ed.) Bronvermelding
Orem, R. (1974). Montessori: Her method and the movement. G.P.Putnam's sons.
Chicago (17e ed.) Bronvermelding
Orem, R.C. Montessori: Her Method and the Movement. New York: G.P.Putnam's sons, 1974.
MLA (9e ed.) Bronvermelding
Orem, R.C. Montessori: Her Method and the Movement. G.P.Putnam's sons, 1974.
Let op: Deze citaties zijn niet altijd 100% accuraat.