Impact of motorcycle helemet [i.e. helmet] law repeal in South Dakota 1976-79 : executive summary
By: Cynthia Struckman-Johnson, V.S. Ellingstad ; prepared for U.S. Department of Transportation, National Highway Traffic Safety Administration.
Contributors: Ellingstad, Vernon S.; United States. National Highway Traffic Safety Administration.; University of South Dakota. Human Factors Laboratory.
Publisher: The Administration; National Technical Information Service [distributor
Published: 1980
Place of publication: Washington, D.C; Springfield, Va
Language: eng
Number of pages: 26
Subjects: Motorcycling injuries -- South Dakota.
Other titles: Impact of motorcycle helmet law repeal in South Dakota 1976-79.
Notes: Cover title.

"Final report."

"Human Factors Laboratory, Department of Psychology, University of South Dakota."

"June 1980."

"Contract no. DOT-Hs-9-02130."

"DOT HS-805-621."