Columbia subject headings:
Income tax--Law and legislation--United States.
Internal revenue law--United States.
Tax credits--Law and legislation--United States.
Tax incentives--Law and legislation--United States.
Taxation--Law and legislation--United States.
United States. Tax Increase Prevention and Reconciliation Act of 2005.
United States. Tax Relief and Health Care Act of 2006.
Harvard subject headings:
Income tax--Law and legislation--United States.
Tax credits--Law and legislation--United States.
Tax incentives--Law and legislation--United States.
United States. United States Tax Relief and Health Care Act of 2006.
Princeton subject headings: