Columbia subject headings:
Economic assistance, Domestic--United States.
Indian reservations--Economic conditions--United States.
Indians of North America.
Harvard subject headings:
Indian reservations--Economic aspects--United States--Directories.
Indian reservations--United States--Directories.
Indians of North America--Economic conditions--United States--Directories.
Reference works.
Princeton subject headings:
Directories.
Indian reservations--United States--Directories.