Columbia subject headings:
Cossacks--Russia (Federation)--Orenburg Region--History.
Orenburg Region (Russia)--History.
Russia--History--Rebellion of Pugachev, 1773-1775.
Harvard subject headings:
Cossacks--Russia (Federation)--Orenburg Region--History.
Orenburg Region (Russia)--History.
Russia--History--Rebellion of Pugachev, 1773-1775.
Princeton subject headings:
Cossacks--Russia (Federation)--Orenburg Region--History.
Orenburg Region (Russia)--History.
Russia--History--Rebellion of Pugachev, 1773-1775.