From Mises Wiki
Radio is sound communication by radio waves, usually through the transmission of music, news, and other types of programs from single broadcast stations to multitudes of individual listeners equipped with radio receivers.
- "radio (broadcasting)", EncyclopÃ¦dia Britannica. Referenced 2012-12-03.
- Chaos In The Air: Voluntaryism or Statism in the Early Radio Industry? by Carl Watner, August 1991
- Radio at Wikipedia