1. Responding to a Fourfold Increase in Population: The Experience of the Federal Bureau of Prisons;See Scott Higgins;PRISON ARCHITECTURE: POLICY,2000
2. Bureau of Prisons did not report data on the design capacity of its facilities to the Bureau of Justice Statistics for at least the last two censuses of correctional facilities;CENSUS OF STATE AND FEDERAL CORRECTIONAL FACILITIES,2005
3. Census of State and Federal Adult Correctional Facilities, 2005
4. Prison and Jail Inmates at Midyear 2006 (Revised 03/12/08)