Columbia subject headings:
Harvard subject headings:
Africa--Commercial treaties--Congresses.
Africa--Economic integration--Congresses.
Africa--Foreign economic relations--Congresses.
Globalization--Africa--Congresses.
Princeton subject headings:
Africa--Commercial treaties--Congresses.
Africa--Economic integration--Congresses.
Africa--Foreign economic relations--Congresses.
Globalization--Africa--Congresses.