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Subjects
History
3
Biography
2
Civil defense
2
Hungary -- History -- 1956 -1962 -- Sources
2
Hungary -- History -- Revolution, 1956 -- Refugees
2
Spanish Civil War
2
Agriculture
1
Animal and plant protection reconnaissance
1
Civil defense reconnaissance
1
Contamination area
1
Decontamination of food
1
Decontamination of land
1
Decontamination station
1
Engineering rescue services
1
Labour movement
1
Public shelter
1
Railway
1
Signal flag
1