Columbia subject headings:
Environmental law, International--Congresses.
Environmental law--Congresses.
Investments, Foreign (International law)--Congresses.
Investments, Foreign--Law and legislation--Congresses.
Sustainable development--Congresses.
Harvard subject headings:
Environmental law
Environmental law, International.
Investments, Foreign (International law)
Investments, Foreign--Law and legislation.
Sustainable development
Princeton subject headings: