http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
1 volume (various pagings) ; 28 cm. + 1 CD-ROM.
"Original Eighth Edition, August 2001, latest revision May 2004."
Also available via Internet from the PTO web site.
Paperbound reprint of the looseleaf manual issued by the U.S. Patent and Trademark Office, including Revision No.2 (May 2004).
Maheu Publishing, 8137 Briar Creek Dr., Annandale, Va. 22003, ph. 703-426-0633.