APA (7e ed.) Bronvermelding

Não informado. Visual education. National Committee for Visual Aids in Education.

Chicago (17e ed.) Bronvermelding

Não informado. Visual Education. London: National Committee for Visual Aids in Education.

MLA (8e ed.) Bronvermelding

Não informado. Visual Education. National Committee for Visual Aids in Education.

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