APA Citatie

Langford, P. (1987). Concept devolopment in the secondary school. Croom Helm.

Chicago Style citaat

Langford, Peter. Concept Devolopment in the Secondary School. London: Croom Helm, 1987.

MLA citatie

Langford, Peter. Concept Devolopment in the Secondary School. Croom Helm, 1987.

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