Columbia subject headings:
Income tax--Austria.
Income tax.
Withholding tax--United States.
Harvard subject headings:
Income tax--Austria.
Income tax--Law and legislation--United States.
Income tax.
United States. Internal Revenue Service. Publication--no. 429--no. 429.
United States. Internal Revenue Service. Publication--no. 429.
Withholding tax--United States.
Princeton subject headings: