Columbia subject headings:
August, Oliver, 1971---Travel--Germany.
Berlin Wall, Berlin, Germany, 1961-1989.
Germany--Description and travel.
Germany--History--1990-
Germany--History--Unification, 1990.
Harvard subject headings:
Princeton subject headings:
August, Oliver, 1971---Travel--Germany.
Germany--Description and travel.
Germany--History--1990-
Germany--History--Unification, 1990.