Columbia subject headings:
Manuscripts--Collectors and collecting--Russia.
Merchants--Russia--Biography.
Rare books--Collectors and collecting--Russia.
Titov, A. A. (Andreĭ Aleksandrovich), 1845-1911--Bibliography.
Titov, A. A. (Andreĭ Aleksandrovich), 1845-1911.
Harvard subject headings:
Manuscripts--Collectors and collecting--Russia.
Merchants--Russia--Biography.
Rare books--Collectors and collecting--Russia.
Titov, A. A. (Andreĭ Aleksandrovich), 1845-1911--Bibliography.
Titov, A. A. (Andreĭ Aleksandrovich), 1845-1911.
Princeton subject headings:
Historians--Russia--Biography.
Titov, A. A. (Andreĭ Aleksandrovich), 1845-1911.