Columbia subject headings:
Caucasus, Northern (Russia)--History--February Revolution, 1917.
Caucasus, Northern (Russia)--History--Revolution, 1905-1907.
Caucasus, Northern (Russia)--History--Revolution, 1917-1921.
Harvard subject headings:
Caucasus, Northern (Russia)--History--February Revolution, 1917.
Caucasus, Northern (Russia)--History--Revolution of 1905.
Caucasus, Northern (Russia)--History--Revolution, 1917-1921.
Princeton subject headings:
Caucasus, Northern (Russia)--History--February Revolution, 1917.
Caucasus, Northern (Russia)--History--Revolution, 1905-1907.
Caucasus, Northern (Russia)--History--Revolution, 1917-1921.