http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
strategy for reducing wet-pavement accidents in Illinois
Bureau of Materials and Physical Research.
Interim report IHR-86, Skid resistance of pavement surfaces.
Research study conducted by Illinois Dept. of Transportation in cooperation with the U. S. Federal Highway Administration.
Physical research report (Illinois. Department of Transportation) ; no. 60