http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
final report of the railroad research study conducted by the Transportation Research Board and sponsored by the Federal Railroad Administration, U.S. Department of Transportation, and the Association of American Railroads
Committee on the Railroad Research Study.
Committee on the Railroad Research Study, Transportation Research Board, Commission on Sociotechnical Systems, National Research Council.
"Study was based primarily on a conference held in July 1975 at Woods Hole, Massachusetts."