Columbia subject headings:
Harvard subject headings:
Tax administration and procedure--United States.
Tax protests and appeals--United States
United States. Internal Revenue Service--Management.
United States. Internal Revenue Service. Office of the Taxpayer Advocate.
Princeton subject headings:
Tax administration and procedure--United States.
Tax protests and appeals--United States.
United States. Internal Revenue Service--Management.
United States. Internal Revenue Service. Office of the Taxpayer Advocate