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Subject
- Social conditions. ltcsh[remove]2
- Civilisation 1950-1
- Civilization, Modern1
- Civilization, Modern 1950-1
- Civilization, Modern 1950- nli1
- Ecology. ltcsh1
- FORECASTING. nasat1
- Human resources. ltcsh1
- Income and wealth. ltcsh1
- Mensheid. gtt1
- Natural resources. ltcsh1
- Politieke filosofie. gtt1
- Regression (Civilization)1
- Regression (Civilization) nli1
- Social indicators1
- Socialism. ltcsh1
- Statistical theory and methods. ltcsh1
- Zivilisation gnd1
- Zukunft gnd1