Columbia subject headings:
Harvard subject headings:
Developing countries--Foreign relations--Germany (East)--Congresses.
Developing countries--Foreign relations--Germany (West)--Congresses.
Germany (East)--Foreign relations--Developing countries--Congresses.
Germany (West)--Foreign relations--Developing countries--Congresses.
Princeton subject headings:
Developing countries--Foreign relations--Germany (East)--Congresses.
Developing countries--Foreign relations--Germany (West)--Congresses.
Germany (East)--Foreign relations--Developing countries--Congresses.
Germany (West)--Foreign relations--Developing countries--Congresses.