http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Title from title screen (viewed July 8, 2009).
Mode of access: Internet from the NPS web site. Address as of 07/08/09: http://www.nps.gov/history/history/online%5Fbooks/blri/hrs.pdf ; current access is available via PURL.