APA (7e ed.) Bronvermelding

Não informado. (1974). Explorations in economic research. National Bureau of Economic Research.

Chicago (17e ed.) Bronvermelding

Não informado. Explorations in Economic Research. New York: National Bureau of Economic Research, 1974.

MLA (8e ed.) Bronvermelding

Não informado. Explorations in Economic Research. National Bureau of Economic Research, 1974.

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