National Research Council (U.S.). Panel on Estimates of Poverty for Small Geographic Areas, ebrary, Inc, Citro, C. F., & Kalton, G. (1999). Interim report 3, evaluation of 1995 county and school district estimates for title 1 allocations. National Academy Press.

National Research Council (U.S.). Panel on Estimates of Poverty for Small Geographic Areas, Inc ebrary, Constance F. Citro, and Graham Kalton. Interim Report 3, Evaluation of 1995 County and School District Estimates for Title 1 Allocations. Washington, D.C.: National Academy Press, 1999.

National Research Council (U.S.). Panel on Estimates of Poverty for Small Geographic Areas, et al. Interim Report 3, Evaluation of 1995 County and School District Estimates for Title 1 Allocations. National Academy Press, 1999.