Columbia subject headings:
Double taxation--United States--Treaties.
Income tax--Law and legislation--United States.
Income tax--United States--Foreign income.
United States--Foreign relations--Treaties.
Harvard subject headings:
Double taxation--United States--Treaties.
Income tax--Law and legislation--United States.
Income tax--United States--Foreign income.
United States--Foreign relations--Treaties.
Princeton subject headings:
Double taxation--United States--Treaties.
Income tax--Law and legislation--United States.
Income tax--United States--Foreign income.
Treaties.
United States--Foreign relations--Treaties.