Columbia subject headings:
Communism--Ukraine--History--20th century.
Nationalism--Ukraine--History--20th century.
Ukraine--Politics and government--20th century.
Harvard subject headings:
Communism--Ukraine--History--20th century.
Nationalism and socialism--Ukraine--History--20th century.
Nationalism--Ukraine--History--20th century
Ukraine--Politics and government--20th century.
Princeton subject headings: