Columbia subject headings:
Harvard subject headings:
Germany--Foreign economic relations--Poland.
Germany--Foreign relations--Poland.
Germany--History--Unification, 1990--Economic aspects--Poland.
Poland--Foreign economic relations--Germany.
Poland--Foreign relations--Germany
Princeton subject headings:
Germany--Foreign economic relations--Poland.
Germany--Foreign relations--Poland.
Germany--History--Unification, 1990--Economic aspects--Poland.
Poland--Foreign economic relations--Germany.
Poland--Foreign relations--Germany.