Columbia subject headings:
Harvard subject headings:
Europe--Economic integration--20th century.
Europe--Economic integration--Political aspects--History--20th century.
Europe--Politics and government--1989-
European Union countries--Economic integration.
European Union countries--Politics and government.
European Union--History.
European cooperation--History.
Globalization--European Union countries.
Princeton subject headings:
Europe--Economic integration--20th century.
European Union countries--Economic integration--History.
European Union countries--Politics and government--History.
European Union--History.
European cooperation--History.
Globalization--European Union countries.