Columbia subject headings:
Harvard subject headings:
Europe--Economic conditions.
Europe--Moral conditions--History--21st century.
Europe--Politics and government--21st century--Philosophy.
Europe--Politics and government--21st century.
Values--Europe--History--21st century.
Princeton subject headings:
Europe--Economic conditions.
Europe--Moral conditions--History--21st century.
Europe--Politics and government--21st century--Philosophy.
Europe--Politics and government--21st century.
Values--Europe--History--21st century.