Columbia subject headings:
Czechoslovakia--Foreign relations--Germany--Congresses.
Czechoslovakia--Politics and government--1989-1992--Congresses.
Europe, Eastern--Foreign relations--Congresses.
Germany (East)--Politics and government--1989-1990--Congresses.
Germany--Foreign relations--Czechoslovakia--Congresses.
Germany--Politics and government--1945-1990--Congresses.
Harvard subject headings:
Czechoslovakia--Foreign relations--Germany--Congresses.
Czechoslovakia--Politics and government--1989-1992--Congresses.
Europe, Eastern--Foreign relations--Congresses.
Germany (East)--Politics and government--1989-1990--Congresses.
Germany--Foreign relations--Czechoslovakia--Congresses.
Germany--Politics and government--1945-1990--Congresses.
Princeton subject headings: