National Research Council (U.S.). Panel on Research on Future Census Methods, ebrary, Inc, Cohen, M. L., & King, B. F. (2003). Planning the 2010 census: Second interim report. National Academies Press.

National Research Council (U.S.). Panel on Research on Future Census Methods, Inc ebrary, Michael L. Cohen, and Benjamin F. King. Planning the 2010 Census: Second Interim Report. Washington, D.C.: National Academies Press, 2003.

National Research Council (U.S.). Panel on Research on Future Census Methods, et al. Planning the 2010 Census: Second Interim Report. National Academies Press, 2003.