Columbia subject headings:
Kochubeĭ, N. V. (Nikolaĭ Vasilʹevich)
Russia (Federation)--Relations--Ukraine.
Ukraine--Politics and government--1917-1945.
Ukraine--Relations--Russia (Federation)
Harvard subject headings:
Kochubeĭ, N. V. (Nikolaĭ Vasilʹevich)
Russia (Federation)--Relations--Ukraine.
Ukraine--Politics and government--1917-
Ukraine--Relations--Russia (Federation)
Princeton subject headings: