Columbia subject headings:
Harvard subject headings:
Bet͡skoĭ, Ivan Ivanovich, 1704-1795--Appreciation--Congresses.
Education and state--Russia (Federation)--18th century--Congresses.
Education and state--Russia (Federation)--21st century--Congresses.
Education--Russia (Federation)--21st century--Congresses.
Education--Russia (Federation)--History--18th century--Congresses.
Educational change--Russia (Federation)--21st century--Congresses.
Imperatorskīĭ S.-Peterburgskīĭ vospitatelʹnyĭ dom--History--Congresses.
Russia (Federation)--Civilization--21st century--Congresses.
Princeton subject headings:
Bet︠s︡koĭ, Ivan Ivanovich, 1704-1795--Congresses.
Education--Russia (Federation)--Congresses.
Education--Russia--History--18th century--Congresses.
Music--Instruction and study--Russia (Federation)--Congresses.