"August 31, 2000.", "B-284947.", "HEHS/GGD-00-184R.", Not distributed to depository libraries in a physical form., Paper copy available from the General Accounting Office., and Title from title screen.
Includes bibliographical references.
Mode of access: Internet via the GPO Access web site. Address as of 6/11/01: http://frwebgate.access.gpo.gov/cgi-bin/getdoc.cgi?dbname=gao&docid=f:h200184r.pdf; current access is available via PURL. and System requirements: Adobe Acrobat Reader.