Columbia subject headings:
Architecture--Austria--Vienna--History--20th century--Pictorial works.
Public buildings--Austria--Vienna--Pictorial works.
Vienna (Austria)--Buildings, structures, etc.--Pictorial works.
Harvard subject headings:
Architecture--Austria--Vienna--History--20th century
Public architecture--Austria--Vienna--History--20th century.
Vienna (Austria)--Buildings, structures, etc.--History--20th century.
Princeton subject headings: