Columbia subject headings:
Harvard subject headings:
Economic man.
Kommunisticheskai︠a︡ partii︠a︡ Sovetskogo Soi︠u︡za--History.
Lenin, Vladimir Ilʹich, 1870-1924
Socialism--Philosophy.
Princeton subject headings:
Entrepreneurship.
Lenin, Vladimir Ilʹich, 1870-1924.
Marxian economics.