http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Values of time savings of commercial vehicles
[by] William G. Adkins, Allen W. Ward, and William F. McFarland.
"Concludes the research done at [Texas Transportation Institute of] Texas A & M University on a project entitled The value of highway travel time, comfort, convenience, and uniform driving speed."
Report (National Cooperative Highway Research Program) ; 33