Columbia subject headings:
Harvard subject headings:
Constitutional history--Austria--Vienna--20th century.
Lower Austria (Austria)--Administrative and political divisions--History--20th century.
Lower Austria (Austria)--History--20th century.
Vienna (Austria)--Administrative and political divisions--History--20th century.
Vienna (Austria)--History--1918-
Vienna (Austria)--Politics and government--20th century.
Vienna (Austria). Wiener Stadtverfassung--History.
Princeton subject headings:
Lower Austria (Austria)--History--20th century.
Vienna (Austria)--History--1918-
Vienna (Austria). Wiener Stadtverfassung--History.