Columbia subject headings:
Harvard subject headings:
Census undercounts--United States.
Sampling (Statistics)
United States--Census, 2000.
United States--Census--Methodology.
United States--Census.
United States. Bureau of the Census
Princeton subject headings:
Census undercounts--United States.
Sampling (Statistics)
United States--Census, 2000.
United States--Census--Methodology.
United States. Bureau of the Census