Columbia subject headings:
Harvard subject headings:
Government business enterprises--Developing countries--Congresses.
International business enterprises--Developing countries--Congresses.
Mineral industries--Congresses
Mineral industries--Developing countries--Congresses.
Princeton subject headings:
Government business enterprises--Developing countries--Congresses.
International business enterprises--Developing countries--Congresses.
Mineral industries--Congresses.
Mineral industries--Developing countries--Congresses.