Cita APA

Scott, J. M. (1972). Extel 100: The centenary history of the exchange telegraph company. London: Ernest Benn Limited.

Chicago Style Citation

Scott, J. M. Extel 100: The Centenary History of the Exchange Telegraph Company. London: Ernest Benn Limited, 1972.

Cita MLA

Scott, J. M. Extel 100: The Centenary History of the Exchange Telegraph Company. London: Ernest Benn Limited, 1972.

Atenció: Aquestes cites poden no estar 100% correctes.