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 crops 1 SEE ALSO narrower term: Hydrocarbon-producing plants 1 Energy crops -- Environmental aspects -- United States. 1 Energy crops -- Illinois. 1 Energy crops industry -- United States. 2 Energy crops -- Juvenile literature. 1 Energy degradation -- SEE: Energy dissipation 11 Energy dependence -- SEE: Energy security 5 Energy development 25 SEE ALSO narrower term: Water resources development 37 Energy development -- Developing countries. 1 Energy development -- Environmental aspects 10 10 20 30 50 100 per page < Previous 10 Headings Next 10 Headings >