Digital telephony

Míreanna Comhchosúla

• Digital telephony /
  le: Bellamy, John C.
  Foilsithe: (2003)
• Digital telephony /
  Foilsithe: (2009)
• Telephony /
  le: Herbert, T. E.
  Foilsithe: (1964)
• Principles of telephony /
  le: Biswas, Nripendra N.
  Foilsithe: (1992)
• Principles of telephony /
  le: Biswas, N. N.
  Foilsithe: (1970)