TY  - BOOK
AU  - Dalton W M
TI  - Story of radio
U1  - 621.3841 
PY  - 1975///
CY  - London
PB  - Adam Hilger
KW  - Radio principles
N1  - Pt.1: How radio began. Pt.2: Everyone an amateur. Pt.3: The world starts to listen
ER  -