Columbia subject headings:
Harvard subject headings:
Heads of state--Soviet Union--Biography.
Lenin, Vladimir Ilʹich, 1870-1924--Political and social views.
Revolutionaries--Soviet Union--Biography
Soviet Union--History--Revolution, 1917-1921--Causes.
Princeton subject headings:
Heads of state--Soviet Union--Biography.
Lenin, Vladimir Ilʹich, 1870-1924--Political and social views.
Revolutionaries--Soviet Union--Biography.
Soviet Union--History--Revolution, 1917-1921--Causes.