Columbia subject headings:
Mineral industries--Developing countries.
Mineral industries--Government policy--Developing countries.
Mines and mineral resources--Developing countries.
Harvard subject headings:
Prospecting--Economic aspects--Developing countries.
Prospecting--Political aspects--Developing countries.
Princeton subject headings:
Developing countries--Economic policy.
Mineral industries--Developing countries.
Mines and mineral resources--Developing countries.