Columbia subject headings:
Harvard subject headings:
Equality--Europe.
Equality--France
Equality--Germany
Equality--Poland.
Europe--Politics and government.
France--Politics and government.
Germany--Politics and government.
Liberty
Poland--Politics and government
Solidarity--Europe.
Solidarity--France.
Solidarity--Germany.
Solidarity--Poland.
Princeton subject headings:
Equality--Europe.
Equality--France.
Equality--Germany.
Equality--Poland.
Europe--Politics and government.
France--Politics and government.
Germany--Politics and government.
Liberty.
Poland--Politics and government.
Solidarity--Europe.
Solidarity--France.
Solidarity--Germany.
Solidarity--Poland.