Columbia subject headings:
Crimea (Ukraine)--History--Sources.
Party committees--Ukraine--Crimea--History--Sources.
Ukraine--History--Revolution, 1917-1921--Sources.
Harvard subject headings:
Crimea (Ukraine)--History--Sources.
Party committees--Ukraine--Crimea--History--Sources.
Ukraine--History--Revolution, 1917-1921--Sources.
Princeton subject headings:
Crimea (Ukraine)--History--Sources.