Columbia subject headings:
Book collecting--Russia--Exhibitions.
Books--History--Exhibitions.
Nauchnai͡a biblioteka Ėrmitazha.
Rare books--Russia (Federation)--Saint Petersburg--Catalogs.
Harvard subject headings:
Book collecting--Russia--Exhibitions.
Books--History--Exhibitions.
Books--Russia (Federation)--Saint Petersburg--Exhibitions.
Nauchnai︠a︡ biblioteka Ėrmitazha--Exhibitions.
Princeton subject headings:
Book collecting--Russia--Exhibitions.
Books--History--Exhibitions.
Books--Russia (Federation)--Saint Petersburg--Catalogs.
Catalogs.
Nauchnai︠a︡ biblioteka Ėrmitazha.