Columbia subject headings:
Harvard subject headings:
Germans--Portraits--Exhibitions.
Germany--History--Unification, 1990--Pictorial works--Exhibitions.
Germany--History--Unification, 1990--Portraits--Exhibitions.
Princeton subject headings:
Germans--Portraits.
Germany--History--Unification, 1990--Pictorial works.
Germany--History--Unification, 1990--Portraits.
Portraits.