Columbia subject headings:
Tax collection--United States.
Tax expenditures--United States.
Taxpayer compliance--United States.
United States. Internal Revenue Service--Rules and practice.
Harvard subject headings:
Tax collection--United States.
Tax expenditures--United States.
Taxpayer compliance--United States.
United States. Internal Revenue Service--Rules and practice.
Princeton subject headings:
Tax collection--United States.
Tax expenditures--United States.
Taxpayer compliance--United States.
United States. Internal Revenue Service--Rules and practice.