"GAO-02-133R." "October 5, 2001." Paper version available from the General Accounting Office. Title from title screen subject line.
Mode of access: Internet from the GPO Access web site. Address as of 2/28/02: http://frwebgate.access.gpo.gov/cgi-bin/getdoc.cgi?dbname=gao&docid=f:d02133r.pdf; current access is available via PURL. System requirements: Adobe Acrobat Reader.