http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Railroad tank car relief valve requirements for liquid PIH lading
Title from title screen (viewed on Oct. 14, 2004).
"Authors: Peter Conlon, Milton R. Johnson, and Michael Grolmes."
Mode of access: Internet via the FRA Web site. Address as of 10/14/04: http://www.fra.dot.gov/downloads/Research/ord0321.pdf; current access is available via PURL.