http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Products and services from the Navigation Data Center
Title from title screen (viewed on Apr. 9, 2004).
"This document last revised: 4/15/2003."
Mode of access: Internet from the IWR web site. Address as of 4/9/04: http://www.iwr.usace.army.mil/ndc/prod.htm; current access is available via PURL.