Columbia subject headings:
Harvard subject headings:
Kommunisticheskai︠a︡ partii︠a︡ Sovetskogo Soi︠u︡za--Party work.
Princeton subject headings:
Kommunisticheskai︠a︡ partii︠a︡ Sovetskogo Soi︠u︡za--Party work.
Trotsky, Leon, 1879-1940.