Columbia subject headings:
Famines--Ukraine--History.
Ukraine--Ethnic relations.
Ukraine--History--Revolution, 1917-1921.
Harvard subject headings:
Famines--Ukraine--History--20th century.
Russia--Ethnic relations--History--20th century.
Russia--Relations--Ukraine.
Soviet Union--History--Revolution, 1917-1921--Food supply.
Ukraine--History--Revolution, 1917-1921.
Ukraine--Relations--Russia.
Princeton subject headings: