Cita APA

(1976). Centenary of the telephone. Switzerland: ITU Telecommunication Journal.

Chicago Style Citation

Centenary of the Telephone. Switzerland: ITU Telecommunication Journal, 1976.

Cita MLA

Centenary of the Telephone. Switzerland: ITU Telecommunication Journal, 1976.

Atenció: Aquestes cites poden no estar 100% correctes.