Columbia subject headings:
Harvard subject headings:
Right and left (Political science)--France--History.
Right and left (Political science)--United States--History.
Social movements--France--History.
Social movements--United States--History.
Princeton subject headings:
Right and left (Political science)--France--History.
Right and left (Political science)--United States--History.
Social movements--France--History.
Social movements--United States--History.