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