Columbia subject headings:
Egorov, I︠U︡. V. (I︠U︡riĭ Vasilʹevich)
Russia (Federation)--Foreign relations.
Russia (Federation)--Politics and government.
Soviet Union--Foreign relations.
Soviet Union--Politics and government.
World politics--20th century.
Harvard subject headings:
Egorov, I︠U︡. V. (I︠U︡riĭ Vasilʹevich)
Russia--History--1801-1917.
Russia--Relations.
Soviet Union--History.
Soviet Union--Relations.
World politics--20th century
Princeton subject headings:
Soviet Union--Politics and government.
World politics--20th century.