Columbia subject headings:
Canada--Foreign relations--United States.
Liability for environmental damages--Canada.
Liability for environmental damages--United States.
Pacific settlement of international disputes.
United States--Foreign relations--Canada.
Harvard subject headings:
Canada--Foreign relations--United States.
Liability for environmental damages--Canada.
Liability for environmental damages--United States.
Pacific settlement of international disputes.
United States--Foreign relations--Canada.
Princeton subject headings: