Columbia subject headings:
Harvard subject headings:
European Union countries--Economic integration--Congresses.
European Union countries--Foreign economic relations--Poland--Congresses.
European Union--Poland--Congresses.
Poland--Economic policy--1990---Congresses.
Poland--Foreign economic relations--European Union countries--Congresses.
Princeton subject headings:
European Union countries--Economic integration--Congresses.
European Union countries--Foreign economic relations--Poland--Congresses.
European Union--Poland--Congresses.
Poland--Economic policy--1990---Congresses.
Poland--Foreign economic relations--European Union countries--Congresses.