Columbia subject headings:
Harvard subject headings:
African Americans--Arkansas--Benton County.
African Americans--Arkansas--Boone County.
African Americans--Arkansas--Carroll County.
African Americans--Arkansas--Washington County.
African Americans--Arkansas.
African Americans--Oklahoma--Tulsa.
African Americans--Ozark Mountains.
Princeton subject headings:
African Americans--Arkansas.
African Americans--Oklahoma--Tulsa.
African Americans--Ozark Mountains.