APA (7th ed.) Citation

American Telephone and Telegraph Company. The Bell System technical journal. American Telephone and Telegraph Company.

Chicago Style (17th ed.) Citation

American Telephone and Telegraph Company. The Bell System Technical Journal. New York: American Telephone and Telegraph Company.

MLA (9th ed.) Citation

American Telephone and Telegraph Company. The Bell System Technical Journal. American Telephone and Telegraph Company.

Warning: These citations may not always be 100% accurate.