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- Hydroelectric power plants.9
- Water-power.4
- Civil rights--Law and legislation.3
- Dams.3
- Electrical engineering.3
- Engineering.3
- International relations.3
- Thurmond, Strom, 1902-2003.3
- United States. Civil Rights Act of 1964.3
- Aeronautics.2
- Alcoholic beverages--Law and legislation.2
- Allied Forces.2
- Allied Powers (1919- )--History.2
- Aquatic sports.2
- Arnold, Henry Harley, 1886-1950.2
- Automobiles.2
- Civil rights--United States.2
- Construction.2
- Crowds.2
- Curiosities and wonders.2