Columbia subject headings:
Europe--Relations--Germany--Congresses.
German reunification question (1949-1990)--Congresses.
Germany--Politics and government--1990---Congresses.
Germany--Relations--Europe--Congresses.
Harvard subject headings:
Europe--Relations--Germany--Congresses.
German reunification question (1949-1990)--Congresses
Germany--Politics and government--1990---Congresses.
Germany--Relations--Europe--Congresses.
Princeton subject headings:
Europe--Relations--Germany--Congresses.
German reunification question (1949-1990)--Congresses.
Germany--Politics and government--1990---Congresses.
Germany--Relations--Europe--Congresses.