Economic aspects
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Economic aspects
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- Professional sports + Economic aspects
- Baseball + Economic aspects -- United States
- Europe -- Economic aspects
- Sports + Economic aspects
- California -- Emigration and immigration -- Economic aspects -- Juvenile literature
- Europe, Eastern -- Economic aspects
- Baseball + Economic aspects
- Technological innovations + Economic aspects
- Sports + Economic aspects -- United States
- Soviet Union -- Economic aspects
- World War, 1914-1918 + Economic aspects -- United States
- World War, 1939-1945 + Economic aspects -- United States
- Biomass energy + Economic aspects
- Insurgency + Economic aspects
- Biomass energy + Economic aspects -- Juvenile literature
- Insurgency + Economic aspects -- Middle East