Cita APA (7a ed.)

Berkeley, G. (1949). Traffic and trunking principles in automatic telephony. Ernest Benn Limited.

Cita Chicago Style (17a ed.)

Berkeley, G.S. Traffic and Trunking Principles in Automatic Telephony. London: Ernest Benn Limited, 1949.

Cita MLA (8a ed.)

Berkeley, G.S. Traffic and Trunking Principles in Automatic Telephony. Ernest Benn Limited, 1949.