Columbia subject headings:
Civilization--History.
Historians--Germany--Biography.
Kern, Fritz, 1884-1950.
Philosophy.
Harvard subject headings:
Civilization--History
Historians--Germany--Biography
Kern, Fritz, 1884-1950.
Philosophy.
Princeton subject headings:
Civilization--History.
Historians--Germany--Biography.
Kern, Fritz, 1884-1950.
Philosophy.