National telephone network for the automatic service.

Eitemau Tebyg

• National telephone networks for the automatic service : IIIrd Plenary Assembly, Geneva, 1964.
  Cyhoeddwyd: (1964)
• Introduction to telephones and telephone systems /
  gan: Noll, A. Michael
  Cyhoeddwyd: (1986)
• Bibliography for the Manual on national telephone networks for the automatic service /
  Cyhoeddwyd: (1964)
• Design of automatic telephone exchanges.
  gan: Trautmann, Kurt
  Cyhoeddwyd: (1962)
• Introduction to telephones & telephone systems /
  gan: Noll, A. Michael
  Cyhoeddwyd: (1991)