Description
Item Description:Title from PDF title page (viewed May 18, 2010).
Updated to the 2008 [edition].
Title from title screen (viewed July 2, 2007).
Electronic resource.
Physical Description:electronic text, volumes : HTML, digital, PDF files.
Publication Frequency:Updated irregularly
Format:Mode of access: Internet from the GPO Permanent Access web site. Address as of 5/18/10: http://permanent.access.gpo.gov/lps82971/ ; current access is available via PURL.