Trautmann, K. (1962). Design of automatic telephone exchanges. Siemens.
芝加哥风格引文Trautmann, Kurt. Design of Automatic Telephone Exchanges. [München]: Siemens, 1962.
MLA引文Trautmann, Kurt. Design of Automatic Telephone Exchanges. Siemens, 1962.
警告：这些引文格式不一定是100％准确.