Columbia subject headings:
Census undercounts--United States.
United States--Census.
United States--Statistical services.
Harvard subject headings:
Census undercounts--United States.
United States--Census, 2000--Methodology.
United States--Census--Methodology.
United States--Census.
Princeton subject headings:
Census undercounts--United States.
United States--Census, 22nd, 2000--Methodology.
United States--Census--Methodology.