Columbia subject headings:
Bebel, August, 1840-1913.
Labor movement--Germany--History--19th century.
Socialists--Germany--Biography.
Harvard subject headings:
Bebel, August, 1840-1913.
Labor movement--Germany--History--19th century.
Socialists--Germany--Biography
Princeton subject headings:
Bebel, August, 1840-1913.
Labor movement--Germany--History--19th century.
Socialists--Germany--Biography.