APA (7e ed.) Bronvermelding

National Council of Teachers of Mathematics. (1954). The Arithmetic teacher. National Council of Teachers of Mathematics.

Chicago (17e ed.) Bronvermelding

National Council of Teachers of Mathematics. The Arithmetic Teacher. Washington, D.C: National Council of Teachers of Mathematics, 1954.

MLA (9e ed.) Bronvermelding

National Council of Teachers of Mathematics. The Arithmetic Teacher. National Council of Teachers of Mathematics, 1954.

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