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