Columbia subject headings:
Developing countries--Economic conditions.
Developing countries--Economic policy.
Regional planning--Developing countries.
Socialism--Developing countries.
Harvard subject headings:
Developing countries--Economic conditions.
Developing countries--Economic policy.
Regional planning--Developing countries.
Socialism--Developing countries
Princeton subject headings:
Developing countries--Economic conditions.
Developing countries--Economic policy.
Regional planning--Developing countries.
Socialism--Developing countries.