Columbia subject headings:
Council of Europe.
European Union.
European cooperation.
International agencies--Europe.
North Atlantic Treaty Organization.
Organization for Security and Co-operation in Europe.
Western European Union.
Harvard subject headings:
Council of Europe.
European Union
European cooperation.
International agencies--Europe
North Atlantic Treaty Organization
Organization for Security and Co-operation in Europe.
Western European Union.
Princeton subject headings:
Council of Europe.
European Union.
European cooperation.
International agencies--Europe.
North Atlantic Treaty Organization.
Organization for Security and Co-operation in Europe.
Western European Union.