Impact of motorcycle helmet usage in Oklahoma
By: Alan L. Dorris, Jerry L. Purswell ; prepared for U.S. Department of Transportation, National Highway Traffic Safety Administration
Contributors: Purswell, Jerry L; United States. National Highway Traffic Safety Administration
Publisher: The Administration; National Technical Information Service [distributor
Published: 1978
Place of publication: Washington, D.C; Springfield, Va
Language: eng
Subjects: Helmets -- Oklahoma -- Data processing; Traffic accidents -- Oklahoma -- Data processing
Notes: Cover title

"Final report."

"July 1978."

"Contract no. DOT HS-6-10483."

"DOT HS-803 681"--V. I

"DOT HS-803 682"--V. II

Bibliography: v. I, p. [A-6-A-7]
Table of contents: value: v. I. Research report; value: v. II. Supplemental data/appendix