Columbia subject headings:
Harvard subject headings:
Former Soviet republics--Relations--Poland--Congresses.
Poland--Relations--Former Soviet republics--Congresses.
Post-communism--Europe, Eastern--Congresses
Post-communism--Former Soviet republics--Congresses
Princeton subject headings:
Former Soviet republics--Relations--Poland--Congresses.
Poland--Relations--Former Soviet republics--Congresses.
Post-communism--Europe, Eastern--Congresses.
Post-communism--Former Soviet republics--Congresses.