Columbia subject headings:
Harvard subject headings:
United States. Department of Energy--Appropriations and expenditures.
United States. Environmental Protection Agency--Appropriations and expenditures.
United States. National Oceanic and Atmospheric Administration--Appropriations and expenditures.
Princeton subject headings:
United States. Department of Energy--Appropriations and expenditures.
United States. Environmental Protection Agency--Appropriations and expenditures.
United States. National Oceanic and Atmospheric Administration--Appropriations and expenditures.