Columbia subject headings:
Harvard subject headings:
Africa--Commercial treaties--Congresses.
Africa--Foreign economic relations--European Union countries--Congresses.
European Union countries--Commercial treaties--Congresses.
European Union countries--Foreign economic relations--Africa--Congresses.
Princeton subject headings:
Africa--Foreign economic relations--Europe--Congresses.
Europe--Foreign economic relations--Africa--Congresses.
European Union--Foreign economic relations--Africa--Congresses.