Columbia subject headings:
Harvard subject headings:
Democracy--History
Liberalism--History
Political participation--History.
Wittgenstein, Ludwig, 1889-1951
Wittgenstein, Ludwig, 1889-1951--Contributions in political science.
Princeton subject headings:
Democracy--History.
Liberalism--History.
Political participation--History.
Wittgenstein, Ludwig, 1889-1951--Contributions in political science.