APA (7e ed.) Bronvermelding

Não informado. (1979). Focus on Learning Problems in Mathematics. Center for Teaching Learning on Mathematics.

Chicago (17e ed.) Bronvermelding

Não informado. Focus on Learning Problems in Mathematics. Framingham, Mass: Center for Teaching Learning on Mathematics, 1979.

MLA (8e ed.) Bronvermelding

Não informado. Focus on Learning Problems in Mathematics. Center for Teaching Learning on Mathematics, 1979.

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