Columbia subject headings:
Harvard subject headings:
Germany--History--Unification, 1990--Economic aspects.
Germany--History--Unification, 1990--Public opinion.
Germany--History--Unification, 1990--Social aspects.
Princeton subject headings:
Germany--Economic conditions--1990---Public opinion.
Germany--History--Unification, 1990--Public opinion.
Germany--Social conditions--1990---Public opinion.
Public opinion--Germany.