Subject
Mines and mineral resources
4
Drug abuse
3
Photovoltaic power generation
3
Space vehicles Auxiliary power supply
3
United States Foreign relations
3
Canada Foreign relations
2
Clay
2
Contaminated sediments
2
Depository libraries
2
Dredging spoil
2
Drug abuse Treatment
2
Drug addiction
2
Energy development
2
Forest nurseries
2
Forest restoration
2
Geology
2
Lake sediments
2
Manufacturing processes Technological innovations
2
Marine sediments
2
Microscopy
2
Mineral industries
2
Neuropsychopharmacology
2
Power resources
2
Sedimentation and deposition
2
Sustainable development Technological innovations
2
Trees Seedlings
2
Administrative agencies Officials and employees
1
American literature History and criticism
1
Anthropology
1
Authorship
1
Bears
1
Biotic communities Research
1
Brooklyn (New York, N.Y.)
1
Budget
1
Canada Statistical services
1
Clay minerals
1
Cold regions
1
Colonial birds
1
Colorado Appropriations and expenditures
1
Colorado Officials and employees
1
Communicable diseases
1
Community-based corrections
1
Contractors Awards
1
Courts
1
Criminals Rehabilitation
1
Deep diving Physiological aspects
1
Drug abuse Epidemiology
1
Earthquake prediction
1
East Village (New York, N.Y.)
1
Education and crime
1
more ...