Columbia subject headings:
Austria--History--1519-1740.
Austria--History--1740-1789.
Austria--History--1789-1900.
Austria--History--20th century.
Harvard subject headings:
Austria--History--1519-1740.
Austria--History--1740-1789.
Austria--History--1789-1900.
Austria--History--20th century.
Princeton subject headings:
Austria--History--1519-1740.
Austria--History--1740-1789.
Austria--History--1789-1900.
Austria--History--20th century.