Columbia subject headings:
Socialism and education--Germany--History.
Socialism and religion--Germany--History.
Socialists--Germany--History.
Harvard subject headings:
Socialism and education--Germany--History.
Socialism and religion--Germany--History.
Socialists--Germany--History.
Princeton subject headings:
Socialism and education--Germany--History.
Socialism and religion--Germany--History.
Socialists--Germany--History.