Columbia subject headings:
Vsesoi︠u︡znyĭ leninskiĭ kommunisticheskiĭ soi︠u︡z molodezhi--History.
Harvard subject headings:
Soviet Union--History--1917-1936.
Trotsky, Leon, 1879-1940--Political and social views.
Vsesoi︠u︡znyĭ leninskiĭ kommunisticheskiĭ soi︠u︡z molodezhi--History.
Princeton subject headings:
Vsesoi︠u︡znyĭ leninskiĭ kommunisticheskiĭ soi︠u︡z molodezhi--History.