Columbia subject headings:
Harvard subject headings:
Germany (West)--Politics and government--1982-1990--Congresses.
Germany--History--Unification, 1990--Chronology--Congresses.
Germany--History--Unification, 1990--Congresses.
Germany--Politics and government--1945-1990--Congresses.
Kohl, Helmut, 1930-2017--Anniversaries, etc.--Congresses.
Kohl, Helmut, 1930-2017--Congresses.
Prime ministers--Germany--Influence--Congresses.
Speeches, addresses, etc., German--Congresses.
Princeton subject headings:
Germany (West)--Politics and government--1982-1990--Congresses.
Germany--History--Unification, 1990--Congresses.
Germany--Politics and government--1990---Congresses.
Kohl, Helmut, 1930-2017--Congresses.