Columbia subject headings:
Commercial policy.
Economic development--International cooperation.
Europe--Commercial policy--Congresses.
Europe--Economic integration--Congresses.
European cooperation--Congresses.
European cooperation.
International economic relations.
Harvard subject headings:
Europe--Commercial policy--Congresses.
Europe--Economic integration--Congresses.
European cooperation--Congresses.
Princeton subject headings:
Europe--Commercial policy--Congresses.
Europe--Economic integration--Congresses.
European cooperation--Congresses.