Columbia subject headings:
International economic relations.
International law--Africa.
Harvard subject headings:
International law--Africa--Congresses.
International law--Europe--Congresses.
International law--Study and teaching--Africa--Congresses.
International law--Study and teaching--Europe--Congresses.
Princeton subject headings:
International law--Africa--Congresses.
International law--Europe--Congresses.
International law--Study and teaching--Africa--Congresses.
International law--Study and teaching--Europe--Congresses.