Telephone systems: study supplement /

Míreanna Comhchosúla

• Teaching telephone /
  le: Smol, G.
  Foilsithe: (1976)
• Case study of an experemental telephone exchange /
  le: Smol, G.
  Foilsithe: (1976)
• Introduction to Telephones and Telephone System
  Foilsithe: (1986)
• Telephonic Communication
  le: Mercer, Lawrence G
  Foilsithe: (1967)
• Television systems: study supplement /
  le: Smol, G.
  Foilsithe: (1976)