Columbia subject headings:
Gosudarstvennai︠a︡ publichnai︠a︡ biblioteka imeni M.E. Saltykova-Shchedrina.
Russia--History--1801-1917--Sources.
Soviet Union--History--Sources.
Harvard subject headings:
Gosudarstvennaia publichnaia biblioteka imeni M.E. Saltykova-Shchedrina. Otdel rukopisei i redkikh knig--Catalogs.
Russia--History--1801-1917--Sources.
Soviet Union--History--Sources.
Princeton subject headings:
Russia--History--1801-1917--Sources.
Soviet Union--History--1917-1936--Sources.