APA (7e ed.) Bronvermelding

Não informado. (1971). Early Child Development and Care. Gordon and Breach Science Publishers.

Chicago (17e ed.) Bronvermelding

Não informado. Early Child Development and Care. London: Gordon and Breach Science Publishers, 1971.

MLA (8e ed.) Bronvermelding

Não informado. Early Child Development and Care. Gordon and Breach Science Publishers, 1971.

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