Elementary handbook for wireless operators/

Geahča maid

• Wireless telegraphy: notes for students (covering the post-master general's air licence for W/T operators)/
  Dahkki: 362706 Crook, Wilfred Evelyn
  Almmustuhtton: (1942)
• Early wireless
  Dahkki: 445979 Constable, Anthony
• Technical instruction for marine radio officer (formerly handbook of technical instruction for wireless telegraphists)/
  Dahkki: 346267 Dowsett, Harry Melville, et al.
  Almmustuhtton: (1950)
• History of radio telegraphy and telephony/
  Dahkki: 362432 Blake, George Gascoigne
  Almmustuhtton: (1926)
• Wireless world
  Almmustuhtton: (1911)