Columbia subject headings:
Tax administration and procedure--United States.
Tax collection--United States.
Tax returns--United States.
United States. Internal Revenue Service--Appropriations and expenditures.
Harvard subject headings:
Tax administration and procedure--United States.
Tax collection--United States.
Tax returns--United States.
United States. Internal Revenue Service--Appropriations and expenditures.
Princeton subject headings:
Tax administration and procedure--United States.
Tax collection--United States.
Tax returns--United States.
United States. Internal Revenue Service--Appropriations and expenditures.