"Telecommunication United States History." . . "AT & T Bell Laboratories." . . "Systèmes de télécommunications." . . "Enginyeria Història." . . "Telephone United States History." . . "Engineering History." . . "Bell Telephone Laboratories." . . "Bell Telephone Laboratories, inc." . . . . . . . "A history of engineering and science in the Bell system : communications (1925-1980)"@en . . . "A History of engineering and sicence in the bell system : communications sciences (1925-1980)" . "A History of engineering and science in the Bell system : communications sciences (1925-1980)" . "A history of engineering and science in the Bell system : communication sciences"@en . . . . "A History of engineering and science in the Bell system"@en . . . . . "A history of engineering and science in the Bell System : communications sciences (1925-1980)"@en . . . . . . . . . . . "History"@en . . "A history of engineering and science in the Bell system : communications sciences (1925-1980)" . . . . . "history of engineering and science in the Bell System" . . . . . "A history of engineering and science in the Bell System. Communications sciences -1925-1980-. Prep. by members of the Techn. Staff, AT and T Bell Laboratories" . . . . . . . . . . . . . . . . . . "A history of engineering and science in the Bell System"@en . . "A History of engineering and science in the Bell system. Communication sciences, 1925-1980"@en . . "United States." . . . . "Télécommunications États-Unis Histoire." . . "Engineering." . . "Téléphone États-Unis Histoire." . . "American Telephone and Telegraph Company." . . "American Telephone and Telegraph Company" . "Telephone." . . "American Telephone and Telegraph Company." . . "Électronique États-Unis Histoire." . . "Télécommunications." . . "Physique Recherche États-Unis Histoire." . . "Telecommunication." . . "AT & T Bell Laboratories (Short Hills, NJ)" . .