Columbia subject headings:
Harvard subject headings:
United States--Appropriations and expenditures.
United States. Department of Defense--Appropriations and expenditures.
United States. Department of Energy--Appropriations and expenditures.
Princeton subject headings:
United States--Appropriations and expenditures.
United States. Department of Defense--Appropriations and expenditures.
United States. Department of Energy--Appropriations and expenditures.