Columbia subject headings:
Political science--Europe--History--18th century.
Political science--Europe--History--19th century.
Harvard subject headings:
Political science--Europe--History--18th century.
Political science--Europe--History--19th century.
Political science--History--18th century
Political science--History--19th century
Princeton subject headings:
Political science--Europe--History--18th century.
Political science--Europe--History--19th century.