Columbia subject headings:
Art historians--Germany--Biography.
Art--Political aspects--Germany--History--20th century.
Hamann, Richard, 1879-1961.
Harvard subject headings:
Art historians--Germany--Biography.
Art--Political aspects--Germany--History--20th century.
Hamann, Richard, 1879-1961.
Princeton subject headings:
Art historians--Germany--Biography.
Art--Political aspects--Germany--History--20th century.
Hamann, Richard, 1879-1961.