Search for: Title Author Subject Series that begins with: 10 20 30 50 100 per page < Previous 10 Headings Next 10 Headings > Browse Headings # Energy conversion 3 SEE ALSO narrower term: Biomass energy 19 Energy conversion efficiency. 1 Energy conversion -- Juvenile literature. 1 Energy crops 1 SEE ALSO: Biomass energy 19 SEE ALSO narrower term: Fuelwood crops 1 SEE ALSO narrower term: Sugarcane 4 Energy crops industry 2 Energy crops industry -- United States. 1 Energy dependence -- SEE: Energy security 9 Energy development 35 SEE ALSO narrower term: Water resources development 30 Energy development -- Colorado -- Parachute Creek. 1 Energy development -- Developing countries -- Finance. 1 10 20 30 50 100 per page < Previous 10 Headings Next 10 Headings >