@article{68138,
      note = {Includes index.},
      url = {http://library.usi.edu/record/68138},
      title = {A history of engineering and science in the Bell System:  switching technology, 1925-1975 /},
      publisher = {Bell Telephone Laboratories,},
      recid = {68138},
      pages = {xiv, 639 p. :},
      address = {[New York] :},
      year = {1982},
}