Columbia subject headings:
Dialectical materialism.
Lenin, Vladimir Ilʹich, 1870-1924.
Philosophy, Marxist.
Harvard subject headings:
Lenin, Vladimir Ilʹich, 1870-1924--Knowledge--Philosophy.
Philosophy, Marxist.
Princeton subject headings:
Lenin, Vladimir Ilʹich, 1870-1924--Philosophy.
Philosophy, Marxist.