Columbia subject headings:
Communism--Soviet Union--History--Sources.
Heads of state--Soviet Union--Biography.
Lenin, Vladimir Ilʹich, 1870-1924.
Harvard subject headings:
Communism--Soviet Union--History--Sources.
Heads of state--Soviet Union--Biography.
Lenin, Vladimir Ilʹich, 1870-1924
Princeton subject headings:
Lenin, Vladimir Ilʹich, 1870-1924.
Soviet Union--History--Sources.