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Subjects
Radio Free Europe
8
Hungary
5
Civil defense
4
Radio warning
4
Hungary -- History -- 1956 -1962 -- Sources
3
Hungary -- History -- Revolution, 1956 -- Refugees
3
International broadcasting
3
Radio
2
Radio broadcasting
2
Agriculture
1
Air raid warning
1
Air-raid service
1
Aluminium
1
Black-out services
1
Cabinet officers
1
Civil defense at factories
1
Civil defense command
1
Cold War
1
Evacuation and refugee shelter services
1
Food storage
1