Dyfyniad APA

Fagen, M. D. (1978). A history of engineering and science in the bell system: National service in war and peace (1925-1975). United States of American: Bell Telephone Laboratories, Inc.

Dyfyniad Arddull Chicago

Fagen, M. D. A History of Engineering and Science in the Bell System: National Service in War and Peace (1925-1975). United States of American: Bell Telephone Laboratories, Inc, 1978.

Dyfyniad MLA

Fagen, M. D. A History of Engineering and Science in the Bell System: National Service in War and Peace (1925-1975). United States of American: Bell Telephone Laboratories, Inc, 1978.

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