APA (7th ed.) Citation

Trautmann, K. (1962). Design of automatic telephone exchanges. Siemens & Halske.

Chicago Style (17th ed.) Citation

Trautmann, Kurt. Design of Automatic Telephone Exchanges. Berlín: Siemens & Halske, 1962.

MLA (9th ed.) Citation

Trautmann, Kurt. Design of Automatic Telephone Exchanges. Siemens & Halske, 1962.