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