Columbia subject headings:
Communism--Soviet Union.
Communism.
Lenin, Vladimir Ilʹich, 1870-1924.
Harvard subject headings:
Communism--Soviet Union
Communism.
Lenin, Vladimir Ilʹich, 1870-1924
Princeton subject headings:
Communism--Soviet Union.
Communism.
Lenin, Vladimir Ilʹich, 1870-1924.