http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Controlling vegetation in asphalt pavements
by Wayne G. McCully and William J. Bowmer.
Sponsored by the Texas Highway Department in cooperation with the United States Department of Commerce, Bureau of Public Roads.
Research project number 2-18-59-13. Vegetation control on Texas highways.