APA
Transportation Research Board. National Academy of Sciences, . (1981). Study of methods for increasing safety belt use. Washington DC: Transportation Research Board. National Academy of Sciences.
Chicago
Transportation Research Board. National Academy of Sciences, . 1981. Study of methods for increasing safety belt use. Washington DC: Transportation Research Board. National Academy of Sciences.
Harvard
Transportation Research Board. National Academy of Sciences, . (1981). Study of methods for increasing safety belt use. Washington DC: Transportation Research Board. National Academy of Sciences.
MLA
Transportation Research Board. National Academy of Sciences, . Study of methods for increasing safety belt use. Washington DC: Transportation Research Board. National Academy of Sciences. 1981.