Columbia subject headings:
Harvard subject headings:
Germany (East)--Social conditions.
Germany--History--Unification, 1990--Social aspects.
Germany--Social conditions--1990-
Princeton subject headings:
Germany (East)--Relations--Germany (West)
Germany (West)--Relations--Germany (East)
Germany--History--Unification, 1990.
Germany--Social conditions.
Group identity--Germany (East).