Columbia subject headings:
Commerce--Congresses.
Developing countries--Commerce--Congresses.
International economic relations--Congresses.
Harvard subject headings:
Commerce--Congresses
Developing countries--Commerce--Congresses.
Developing countries--Congresses.
International economic relations--Congresses
Princeton subject headings:
Commerce--Congresses.
Developing countries--Commerce--Congresses.
International economic relations--Congresses.