Highway traffic report, 1979
By: prepared by the South Dakota Department of Transportation, Division of Policy Development and Evaluation, Office of System Analysis in cooperation with US Department of Transportation, Federal Highway Administration.
Contributors: United States. Federal Highway Administration.
Publisher: The Division
Published: 1980
Place of publication: [Pierre]
Language: eng
Number of pages: 146
Subjects: Traffic surveys -- South Dakota.
Notes: Cover title.
Tables.