Columbia subject headings:
Developing countries--Economic policy--Congresses.
Economic assistance--Developing countries--Congresses.
Economic development--Environmental aspects--Congresses.
International economic relations--Congresses.
Harvard subject headings:
Developing countries--Economic policy--Congresses.
Developing countries--Economic policy.
Economic assistance--Developing countries
Economic assistance--Developing countries--Congresses
Economic development--Environmental aspects
Economic development--Environmental aspects--Congresses
International economic relations--Congresses
International economic relations.
Princeton subject headings:
Developing countries--Economic conditions--Congresses.
Developing countries--Economic policy--Congresses.