Columbia subject headings:
Harvard subject headings:
Double taxation--United States
Income tax--Law and legislation--United States.
Income tax--United States--Foreign income.
International business enterprises--Taxation--Law and legislation--United States
Noncitizens--Taxation--Law and legislation--United States
Taxation--Law and legislation--United States
Princeton subject headings:
Income tax--United States--Foreign income.
Income tax--United States.
Investments, Foreign--Taxation--United States.
Taxation--United States.