Columbia subject headings:
Saarbrücken (Germany)--History--18th century.
Saarbrücken (Germany)--History--19th century.
Harvard subject headings:
Industries--Germany--Saarbrücken--History--19th century.
Political culture--Germany--Saarbrücken--History--19th century.
Saarbrücken (Germany)--Intellectual life.
Saarbrücken (Germany)--Politics and government.
Princeton subject headings:
Industries--Germany--Saarbrücken--History--19th century.
Political culture--Germany--Saarbrücken--History--19th century.
Saarbrücken (Germany)--Intellectual life.
Saarbrücken (Germany)--Politics and government.