Columbia subject headings:
Fedorov, Nikolaĭ Fedorovich, 1828-1903.
Philosophers--Soviet Union--Biography.
Russian literature--19th century--History and criticism.
Harvard subject headings:
Fedorov, Nikolaĭ Fedorovich, 1828-1903.
Intellectuals--Soviet Union--Biography.
Philosophers--Soviet Union--Biography
Princeton subject headings:
Fedorov, Nikolaĭ Fedorovich, 1828-1903.
Philosophers--Russia--Biography.