APA (7th ed.) Citation

Berkeley, G. S. (1949). Traffic and trunking principles in automatic telephony ([2d rev. ed.].). E. Benn.

Chicago Style (17th ed.) Citation

Berkeley, Gordon Spence. Traffic and Trunking Principles in Automatic Telephony. [2d rev. ed.]. London: E. Benn, 1949.

MLA (9th ed.) Citation

Berkeley, Gordon Spence. Traffic and Trunking Principles in Automatic Telephony. [2d rev. ed.]. E. Benn, 1949.