APA (7e ed.) Bronvermelding

Clemson, D., & Clemson, W. (1994). Mathematics in the early years. Routledge.

Chicago (17e ed.) Bronvermelding

Clemson, David, en Wendy Clemson. Mathematics in the Early Years. London: Routledge, 1994.

MLA (9e ed.) Bronvermelding

Clemson, David, en Wendy Clemson. Mathematics in the Early Years. Routledge, 1994.