Columbia subject headings:
Harvard subject headings:
Civics, Russian--Congresses.
Civics, Soviet--Congresses.
Internationalism--Study and teaching--Soviet Union--Congresses.
Patriotism--Soviet Union--Congresses.
Soviet Union--Ethnic relations--Congresses.
Princeton subject headings:
Civics, Russian--Congresses.
Internationalism--Study and teaching--Soviet Union--Congresses.
Patriotism--Soviet Union--Congresses.
Soviet Union--Ethnic relations--Congresses.