APA (7e ed.) Bronvermelding

Não informado. (1977). Exceptional Child Education Resources. Council for Exceptional Children.

Chicago (17e ed.) Bronvermelding

Não informado. Exceptional Child Education Resources. Reston, Va: Council for Exceptional Children, 1977.

MLA (8e ed.) Bronvermelding

Não informado. Exceptional Child Education Resources. Council for Exceptional Children, 1977.

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