Columbia subject headings:
Kudri͡avt͡sev-Platonov, Viktor Dmitrievich.
Philosophy and religion.
Philosophy, Russian--19th century.
Harvard subject headings:
Kudri︠a︡vt︠s︡ev-Platonov, Viktor Dmitrievich.
Philosophy and religion.
Philosophy, Russian--19th century.
Princeton subject headings:
Philosophy and religion.
Philosophy, Russian--19th century.