Columbia subject headings:
Lenin, Vladimir Ilʹich, 1870-1924.
Revolutions and socialism.
Soviet Union--Foreign relations--1917-1945.
Harvard subject headings:
Lenin, Vladimir Ilʹich, 1870-1924
Revolutions and socialism.
Soviet Union--Foreign relations--1917-1945.
Princeton subject headings:
Lenin, Vladimir Ilʹich, 1870-1924.
Revolutions and socialism.
Soviet Union--Foreign relations--1917-1945.