APA (7e ed.) Bronvermelding

Orton, A. (1992). Learning mathematics: Issues, theory and classroom practice (2nd ed.). Cassell.

Chicago (17e ed.) Bronvermelding

Orton, Anthony. Learning Mathematics: Issues, Theory and Classroom Practice. 2nd ed. London: Cassell, 1992.

MLA (9e ed.) Bronvermelding

Orton, Anthony. Learning Mathematics: Issues, Theory and Classroom Practice. 2nd ed. Cassell, 1992.

Let op: Deze citaties zijn niet altijd 100% accuraat.