Columbia subject headings:
Harvard subject headings:
Berlin (Germany)--Description and travel
Berlin (Germany)--History--1945-1990
Berlin (Germany)--History--1990-
Morin, Edgar--Travel--Germany--Berlin.
Princeton subject headings:
Berlin (Germany)--Description and travel.
Berlin (Germany)--History--1945-1990.
Berlin (Germany)--History--1990-
Morin, Edgar--Travel--Germany--Berlin.