Columbia subject headings:
Harvard subject headings:
Don River Region (Russia)--Ethnic relations.
Ethnicity--Russia (Federation)--Don River Valley.
Ethnology--Russia (Federation)--Don River Region.
Kalmyks--Russia (Federation)--Don River Region.
Princeton subject headings:
Ethnicity--Russia (Federation)--Don River Valley.
Kalmyks--Russia (Federation)--Don River Region.