Columbia subject headings:
Harvard subject headings:
Communism--Russia (Federation)--21st century--Congresses.
Communism--Russia (Federation)--Congresses.
Communist International--History--21st century--Congresses.
Conference papers and proceedings
Kommunisticheskai︠a︡ partii︠a︡ Rossiĭskoĭ Federat︠s︡ii
Soviet Union--History--Revolution, 1917-1921--Anniversaries, etc.--Congresses.
Princeton subject headings:
Communism--Russia (Federation)
Communist International--History.
Soviet Union--History--Revolution, 1917-1921.