The low-level plutonium spill at NIST-Boulder : contamination of lab and personnel : hearing before the Subcommittee on Technology and Innovation, Committee on Science and Technology, House of Representatives, One Hundred Tenth Congress, second session, July 15, 2008.
Mode of access: Internet from the GPO Access web site. Address as of 12/3/08: http://frwebgate.access.gpo.gov/cgi-bin/getdoc.cgi?dbname=110_house_hearings&docid=f:43351.pdf; current access is available via PURL.