Columbia subject headings:
Caucasus, Northern (Russia)--Politics and government--20th century--Congresses.
Caucasus, Northern (Russia)--Social conditions--20th century--Congresses.
Social conflict--Russia (Federation)--Caucasus, Northern--History--20th century--Congresses.
Harvard subject headings:
Princeton subject headings:
Caucasus, Northern (Russia)--Politics and government--20th century.
Caucasus, Northern (Russia)--Social conditions--20th century.
Social conflict--Russia (Federation)--Caucasus, Northern--History--20th century.