Columbia subject headings:
Elections--Germany.
Germany--Politics and government--1990-
Harvard subject headings:
Christlich-Demokratische Union Deutschlands (Germany : West). Bundesvorstand--History--Sources.
Germany--History--Unification, 1990--Sources.
Germany--Politics and government--Sources.
Kohl, Helmut, 1930-2017.
Political parties--Germany--History--Sources.
Princeton subject headings:
Elections--Germany.
Germany--Politics and government--1990-