Columbia subject headings:
Harvard subject headings:
Americans--Travel--Russia (Federation)--Caucasus, Northern--19th century.
Caucasus, Northern (Russia)--Description and travel.
Caucasus, Northern (Russia)--Ethnic relations
Caucasus, Northern (Russia)--Social life and customs.
Europeans--Travel--Russia (Federation)--Caucasus, Northern--19th century.
Travelers' writings, American
Travelers' writings, European
Princeton subject headings:
Americans--Travel--Russia (Federation)--Caucasus, Northern--19th century.
Caucasus, Northern (Russia)--Description and travel.
Caucasus, Northern (Russia)--Ethnic relations.
Caucasus, Northern (Russia)--Social life and customs.
Europeans--Travel--Russia (Federation)--Caucasus, Northern--19th century.
Travelers' writings, American.
Travelers' writings, European.