Columbia subject headings:
Poland--Politics and government--1989-
Poland--Relations--Ukraine.
Ukraine--Politics and government--1991-
Ukraine--Relations--Poland.
Harvard subject headings:
Poland--Politics and government--1989-
Poland--Relations--Ukraine
Ukraine--Politics and government--1991-
Ukraine--Relations--Poland.
Princeton subject headings:
Poland--Foreign relations--Ukraine.
Poland--Politics and government--1989-
Ukraine--Foreign relations--Poland.
Ukraine--Politics and government--1991-