Columbia subject headings:
Bebel, August, 1840-1913.
Germany--Politics and government--1789-1900.
Germany--Politics and government--1871-1918.
Socialism--Germany--History.
Harvard subject headings:
Princeton subject headings:
Bebel, August, 1840-1913.
Germany--Politics and government--1789-1900.
Germany--Politics and government--1871-1918.
Socialism--Germany--History.