How to identify unsafe motorcycle helmets.
Contributors: United States. National Highway Traffic Safety Administration.
Publisher: U.S. Dept. of Transportation, National Highway Traffic Safety Administration
Published: 1992
Place of publication: Washington, DC (400 Seventh Street, SW, Washington 20590)
Language: eng
Subjects: Helmets; Motorcycles -- Standards -- United States -- Equipment and supplies
Notes: Shipping list no.: 93-0142-P.

"October 1992."

"DOT HS 807 880."

"NTS-23"--P. [8].