motorcycle safety helmet study
By: by Henri A. Richardson.
Series: NHTSA staff report
Publisher: Mathematical Analysis Division, Office of Accident Investigation and Data Analysis, Research Institute, NHTSA, Department of Transportation; distributed by National Technical Information Service,]
Published: 1974
Place of publication: Washington; [Springfield, Va
Language: eng
Number of pages: 38
Subjects: Motorcycles -- Safety appliances.; Helmets.
Notes: "PB-231 318."

Includes bibliographical references.