APA aipamena

Schindler, G. E. (1982). A History of engineering and science in the bell system: Switching technology ( 1925-1975 ). United States of American: Bell Telephone Laboratories, Inc.

Chicago Style aipamena

Schindler, G. E. A History of Engineering and Science in the Bell System: Switching Technology ( 1925-1975 ). United States of American: Bell Telephone Laboratories, Inc, 1982.

MLA aipamena

Schindler, G. E. A History of Engineering and Science in the Bell System: Switching Technology ( 1925-1975 ). United States of American: Bell Telephone Laboratories, Inc, 1982.