APA (7e ed.) Bronvermelding

Não informado. (1969). Development and Change. Institute of Social Studies.

Chicago (17e ed.) Bronvermelding

Não informado. Development and Change. Oxford, Inglaterra: Institute of Social Studies, 1969.

MLA (8e ed.) Bronvermelding

Não informado. Development and Change. Institute of Social Studies, 1969.

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