Columbia subject headings:
Ethnology--High Plains (U.S.)--History.
Indians of North America--High Plains (U.S.)--History.
Harvard subject headings:
Ethnohistory--High Plains (U.S.)
Indians of North America--High Plains (U.S.)--History.
Princeton subject headings:
Ethnohistory--High Plains (U.S.).
Indians of North America--High Plains (U.S.)--History.