Columbia subject headings:
Crimea (Ukraine)--History--20th century.
Political persecution--Ukraine--Crimea--History--20th century.
Soviet Union--History--Revolution, 1917-1921.
Ukraine--History--Revolution, 1917-1921.
Harvard subject headings:
Princeton subject headings:
Crimea (Ukraine)--History--20th century.
Political persecution--Ukraine--Crimea--History--20th century.
Soviet Union--History--Revolution, 1917-1921.
Ukraine--History--Revolution, 1917-1921.