Post Office electrical engineer's journal

Geahča maid

• Supplement to the Post office electrical engineers' journal
  Dahkki: Institution of Post Office Electrical Engineers (Great Britain)
  Almmustuhtton: (1976)
• AT&T Technical Journal
  Almmustuhtton: (1921)
• British telecommunications engineering
  Almmustuhtton: (1982)
• Subscriber loops and services.
  Dahkki: Institute of Electrical and Electronics Engineers. Communication Society
• Bell system technical journal
  Dahkki: American Telephone and Telegraph Company
  Almmustuhtton: (1922)