Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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