Não informado. (1975). The Bell Journal of Economics. American Telephone and Telegraph Company.
Style de citation Chicago (17e éd.)Não informado. The Bell Journal of Economics. New York: American Telephone and Telegraph Company, 1975.
Style de citation MLA (8e éd.)Não informado. The Bell Journal of Economics. American Telephone and Telegraph Company, 1975.
Attention : ces citations peuvent ne pas être correctes à 100%.