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Subjects
Agriculture
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9
Education
2
Industry
2
Animal and plant protection reconnaissance
1
Civil defense
1
Consumer goods
1
Culture
1
Decontamination of food
1
Decontamination of land
1
Developing countries
1
Economic history
1
Food Supply
1
Geography of Hungary
1
Housing
1
International Cooperation
1
Labor
1
Leisure
1
Military
1
Public health
1
Scientific research
1