Columbia subject headings:
Harvard subject headings:
Educators--Soviet Union--Biography
Historians--Soviet Union--Biography
Kareev, N. I. (Nikolaĭ Ivanovich), 1850-1931--Biography.
Kareev, N. I. (Nikolaĭ Ivanovich), 1850-1931--Correspondence.
Princeton subject headings:
Europe--Intellectual life--19th century.
Europe--Intellectual life--20th century.
Historians--Russia--Biography.
Historians--Soviet Union--Biography.
Intellectuals--Russia--Biography.
Intellectuals--Soviet Union--Biography.
Kareev, N. I. (Nikolaĭ Ivanovich), 1850-1931.
Philosophers--Russia--Biography.
Philosophers--Soviet Union--Biography.