Columbia subject headings:
Infrastructure (Economics)--Government policy--United States.
Public works--United States--Finance.
United States--Appropriations and expenditures.
Harvard subject headings:
Infrastructure (Economics)--Government policy--United States.
Public works--United States--Finance.
United States--Appropriations and expenditures.
Princeton subject headings:
Budget--United States.
Infrastructure (Economics)--United States--Finance.
Public works--United States--Finance.
United States--Appropriations and expenditures.