Columbia subject headings:
Dühring, E. (Eugen), 1833-1921.
Intellectuals--Soviet Union.
Social sciences--Soviet Union--History.
Socialism.
Harvard subject headings:
Dühring, E. (Eugen), 1833-1921.
Social sciences--Soviet Union--History.
Socialism.
Princeton subject headings:
Dühring, Eugen Karl, 1833-
Social sciences--Soviet Union--History.
Socialism.