Columbia subject headings:
Lenin, Vladimir Ilʹich, 1870-1924--Assassination attempt, 1918.
Soviet Union--History--Revolution, 1917-1921.
Harvard subject headings:
Lenin, Vladimir Ilʹich, 1870-1924--Assassination attempt, 1918.
Soviet Union--Politics and government--1917-1936.
Princeton subject headings:
Lenin, Vladimir Ilʹich, 1870-1924--Assassination attempt, 1918.