Columbia subject headings:
Harvard subject headings:
Austria--Politics and government--20th century.
Germany--Politics and government--20th century
Heads of state--Austria--History--20th century--Biography.
Heads of state--Germany--History--20th century--Biography.
Socialists--Austria--History--20th century--Biography.
Socialists--Germany--History--20th century--Biography.
Princeton subject headings:
Austria--Politics and government--20th century.
Germany--Politics and government--20th century.
Heads of state--Austria--History--20th century--Biography.
Heads of state--Germany--History--20th century--Biography.
Socialists--Austria--History--20th century--Biography.
Socialists--Germany--History--20th century--Biography.