Columbia subject headings:
Crimea (Ukraine)--History.
Soviet Union--History--Revolution, 1917-1921.
Harvard subject headings:
Russkai︠a︡ Armii︠a︡ (1920-1922)
Soviet Union--History--Revolution, 1917-1921--Refugees.
Princeton subject headings:
Russians--Turkey--Political activity.
Soviet Union--History--Revolution, 1917-1921--Protest movements--Ukraine--Krymskai︠a︡ oblastʹ.