Introduction to telephones and telephone systems/

Ижил төстэй зүйлс

• Introduction to telephone switching
  -н: 355070 Briley, Bruce E.
• Improvements in telephone signalling /
  -н: 272820 Welch, S.
  Хэвлэсэн: (1949)
• The British telephone system : system effectiveness /
  -н: Open University. Systems Behaviour Course Team, зэрэг
  Хэвлэсэн: (1973)
• The telephone and the exchange /
  -н: 462982 Povey, P J
  Хэвлэсэн: (1979)
• Electronic Telephone Projects /
  -н: Caristi, Anthony J., author 364284
  Хэвлэсэн: (1986)