http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Title from PDF file caption (viewed Dec. 11, 2008).
Mode of access: Internet at the FAA web site. Address as of 12/11/08: http://www.airweb.faa.gov/Regulatory%5Fand%5FGuidance%5FLibrary/rgAdvisoryCircular.nsf/0/342f360c7f8e146a86256a84005b1f57/$FILE/ac33.76-1.pdf ; current access available via PURL.