Columbia subject headings:
Fedorov, Nikolaĭ Fedorovich, 1828-1903--Religion.
Religion--Philosophy.
Harvard subject headings:
Fedorov, Nikolaĭ Fedorovich, 1828-1903--Contributions in philosophy of religion.
Religion--Philosophy
Princeton subject headings:
Fedorov, Nikolaĭ Fedorovich, 1828-1903--Religion.
Religion--Philosophy.