Columbia subject headings:
Losskiĭ, N. O. (Nikolaĭ Onufrievich), 1870-1965--Bibliography.
Philosophy--Bibliography.
Harvard subject headings:
Losskiĭ, N. O. (Nikolaĭ Onufrievich), 1870-1965--Bibliography.
Philosophy--Bibliography
Princeton subject headings:
Losskiĭ, N. O. (Nikolaĭ Onufrievich), 1870-1965--Bibliography.