Columbia subject headings:
Investments, Foreign--Law and legislation--Congresses.
Investments, Foreign--Law and legislation--Mexico--Congresses.
Investments, Foreign--Law and legislation--United States--Congresses.
Harvard subject headings:
Investments, Foreign--Law and legislation--Congresses.
Investments, Foreign--Law and legislation--Mexico--Congresses.
Investments, Foreign--Law and legislation--United States--Congresses.
Princeton subject headings: