Columbia subject headings:
Christian philosophers--Russia.
Leontʹev, Konstantin, 1831-1891.
Philosophy, Russian--19th century.
Philosophy, Russian--20th century.
Philosophy, Russian--History.
Religion--Philosophy--Study and teaching--Russia (Federation)
Religious thought--Russia (Federation)
Harvard subject headings:
Philosophy, Russian--History.
Russia--History--Philosophy.
Princeton subject headings:
Leonʹtev, Konstantin, 1831-1891.
Philosophy, Russian--History.
Religious thought--Russia (Federation).