Columbia subject headings:
Ukraine--Politics and government--1917-1945.
Ukraine--Relations--Communist countries.
Ukrainian literature--20th century--History and criticism.
Harvard subject headings:
Ukraine--Politics and government--1917-
Ukraine--Relations--Communist countries.
Ukrainian literature--20th century--History and criticism.
Princeton subject headings:
Ukraine--Politics and government--1917-1945.
Ukraine--Politics and government--1945-1991.
Ukraine--Relations (general) with Communist countries.
Ukrainian literature--20th century--History and criticism.