Columbia subject headings:
Russia--History, Military--1801-1917.
Tornau, Fedor Fedorovich, 1810-1890.
Harvard subject headings:
Russia--History, Military--1801-1917.
Tornau, Fedor Fedorovich, 1810-1890.
Princeton subject headings:
Caucasus--History, Military.
Caucasus--Relations--Russia.
Caucasus--Social life and customs.
Russia--History, Military.
Russia--Relations--Caucasus.
Tornau, Fedor Fedorovich, 1810-1890.