http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Standard and tentative methods of sampling and testing highway materials; recommended by 2nd Conference of State Highway Testing Engineers and Chemists, Washington, D.C., Feb. 23-27, 1920
1 online resource (98+illus.+errata pages)
Electronic reproduction. [Bethesda, Md.] : ProQuest, 2014. digital, PDF file. ProQuest U.S. Executive Branch Documents Mode of access: World Wide Web via ProQuest website.