Columbia subject headings:
Harvard subject headings:
Russian S.F.S.R. Verkhovnyĭ Sovet--Congresses.
Soviet Union--History--Revolution, 1917-1921--Anniversaries, etc.--Congresses.
Soviet Union. Verkhovnyĭ Sovet--Congresses.
T︠S︡K KPSS--Congresses.
Princeton subject headings:
Russian S.F.S.R. Verkhovnyĭ Sovet--Congresses.
Soviet Union--Politics and government.
Soviet Union. Verkhovnyĭ Sovet--Congresses.
T︠S︡K KPSS--Congresses.