Columbia subject headings:
Anti-Nazi movement--Germany.
Beck, Ludwig, 1880-1944.
Germany--Politics and government--1933-1945.
Germany. Heer--History--20th century.
Harvard subject headings:
Anti-Nazi movement--Germany
Beck, Ludwig, 1880-1944.
Germany--Politics and government--1933-1945.
Germany. Heer--History--20th century.
Princeton subject headings: