APA (7e ed.) Bronvermelding

Não informado. (1975). The Bell Journal of Economics. American Telephone and Telegraph Company.

Chicago (17e ed.) Bronvermelding

Não informado. The Bell Journal of Economics. New York: American Telephone and Telegraph Company, 1975.

MLA (8e ed.) Bronvermelding

Não informado. The Bell Journal of Economics. American Telephone and Telegraph Company, 1975.

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