Title: Empire of the air
First published: 1991
Description: Biographies of three pioneers in the radio field who turned a hobby into radio and launched the modern communications age.
Subjects: Radio, Biography, History, Sarnoff, david, 1891-1971, Radio, biography, Radio broadcasting, history
Places: United States
People: David Sarnoff (1891-1971), Edwin H. Armstrong (1890-1954), Lee De Forest (1873-1961)
LC classification: TK6548.U6 L48 1991