Columbia subject headings:
Dialectical materialism.
Knowledge, Theory of.
Philosophy, Russian--19th century.
Philosophy, Russian--20th century.
Plekhanov, Georgiĭ Valentinovich, 1856-1918.
Harvard subject headings:
Princeton subject headings:
Communism--Philosophy.
Philosophy, Russian--19th century.
Philosophy, Russian--20th century.
Plekhanov, Georgiĭ Valentinovich, 1856-1918--Criticism and interpretation.