Columbia subject headings:
Developing countries--Social conditions.
Human ecology--Developing countries.
Natural resources--Developing countries.
Quality of life--Developing countries.
Harvard subject headings:
Developing countries--Economic policy.
Manpower policy--Developing countries
Natural resources--Government policy--Developing countries.
Renewable natural resources--Government policy--Developing countries.
Princeton subject headings:
Developing countries--Economic policy.
Manpower policy--Developing countries.
Natural resources--Government policy--Developing countries.
Renewable natural resources--Government policy--Developing countries.