Joint Subcommittee on Development and Research of the Edison Electric Institute and the Bell Telephone System, Edison Electric Institute, & American Telephone and Telegraph Company. Engineering reports. Charles Francis Press.
Trích dẫn kiểu Chicago (xuất bản lần thứ 7)Joint Subcommittee on Development and Research of the Edison Electric Institute and the Bell Telephone System, Edison Electric Institute, và American Telephone and Telegraph Company. Engineering Reports. New York,: Charles Francis Press.
Trích dẫn kiểu MLA (xuất bản lần thứ 8)Joint Subcommittee on Development and Research of the Edison Electric Institute and the Bell Telephone System, et al. Engineering Reports. Charles Francis Press.
Cảnh báo: Các trích dẫn này có thể không phải lúc nào cũng chính xác 100%.