Search for: Title Author Subject Series Call number that begins with: 10 20 30 50 100 per page < Previous 10 Headings Next 10 Headings > Browse Headings # Hydroelectric power plants. 4 Hydroelectric power plants -- Environmental aspects. 3 Hydroelectric power plants -- Environmental aspects -- Juvenile literature. 1 Hydroelectric power plants -- Environmental aspects -- Klamath River (Or. and Calif.). 1 Hydroelectric power plants -- Juvenile literature. 12 Hydroelectric power plants -- Ontario -- Fiction. 3 Hydroelectric power plants -- Popular works. 2 Hydroelectric power plants -- Social aspects -- Manitoba. 1 Hydroelectric power plants -- United States 1 Hydroelectricity -- SEE: Water power 22 10 20 30 50 100 per page < Previous 10 Headings Next 10 Headings >