Columbia subject headings:
Conflict of laws--Liability for environmental damages--Congresses.
Conflict of laws--Pollution--Congresses.
Environmental law, International--Congresses.
Harvard subject headings:
Conflict of laws--Liability for environmental damages--Congresses.
Conflict of laws--Pollution--Congresses.
Environmental law, International--Congresses.
Environmental law--Congresses
Environmental protection--Congresses
Transboundary pollution--Law and legislation--Congresses.
Princeton subject headings:
Environmental law, International--Congresses.
Transboundary pollution--Law and legislation--Congresses.