Columbia subject headings:
Harvard subject headings:
Geopolitics--Germany
Germany--Politics and government--1918-1933
Germany--Politics and government--1933-1945.
Haushofer, Karl, 1869-1946
Princeton subject headings:
Geopolitics.
Germany--History--1918-1933.
Germany--History--1933-1945.
Haushofer, Karl, 1869-1946.