Columbia subject headings:
International agencies--Congresses.
International cooperation--Congresses.
Non-governmental organizations--Congresses.
United Nations--Economic assistance--Congresses.
United Nations--Technical assistance--Congresses.
Harvard subject headings:
Princeton subject headings:
International agencies--Congresses.
International cooperation--Congresses.
Non-governmental organizations--Congresses.
United Nations--Economic assistance--Congresses.
United Nations--Technical assistance--Congresses.