APA (7e ed.) Bronvermelding

Não informado. (1976). Ethnic groups. Gordon and Breach Science Publishers.

Chicago (17e ed.) Bronvermelding

Não informado. Ethnic Groups. New York: Gordon and Breach Science Publishers, 1976.

MLA (8e ed.) Bronvermelding

Não informado. Ethnic Groups. Gordon and Breach Science Publishers, 1976.

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