Columbia subject headings:
Crimea (Ukraine)--History--20th century.
Socialism and youth--Ukraine--Crimea--History--20th century.
Youth movements--Ukraine--Crimea--History--20th century.
Harvard subject headings:
Crimea (Ukraine)--History--20th century.
Socialism and youth--Ukraine--Crimea--History--20th century.
Youth movements--Ukraine--Crimea--History--20th century.
Princeton subject headings: