Cita APA (7th ed.)

American Telephone and Telegraph Company. (1978). The bell journal of economics: Autumn 1978. American Telephone and Telegraph Company.

Cita Chicago (17th ed.)

American Telephone and Telegraph Company. The Bell Journal of Economics: Autumn 1978. Lancaster: American Telephone and Telegraph Company, 1978.

Cita MLA (9th ed.)

American Telephone and Telegraph Company. The Bell Journal of Economics: Autumn 1978. American Telephone and Telegraph Company, 1978.