Columbia subject headings:
Political refugees--Soviet Union.
Russians--Foreign countries--Intellectual life.
Russians--Political activity--Foreign countries.
Soviet Union--Emigration and immigration.
Harvard subject headings:
Political refugees--Soviet Union.
Russians--Foreign countries--Intellectual life.
Russians--Foreign countries--Political activity.
Soviet Union--Emigration and immigration.
Princeton subject headings:
Political refugees--Soviet Union.
Russians--Foreign countries--Intellectual life.
Russians--Foreign countries--Political activity.
Soviet Union--Emigration and immigration.