Columbia subject headings:
Art, German--Germany (East)--20th century--Catalogs.
Art, German--Germany (East)--Catalogs.
Art--Germany--Berlin--Catalogs.
Nationalgalerie (Germany : East)--Catalogs.
Harvard subject headings:
Art, German--Catalogs.
Art, Modern--20th century--Germany--Catalogs.
Art--Germany--Berlin--Catalogs
Nationalgalerie (Germany : East)--Catalogs.
Princeton subject headings:
Art, German--20th century--Catalogs.
Art, German--Catalogs.
Art--Germany--Berlin--Catalogs.
Catalogs.
National-Galerie (Germany : East)--Catalogs.