APA

World Health Organization W., Technical report series 781, . (1989). New approaches to improve road safety. Report of a WHO study group. Geneve: World Health Organization, WHO.

Chicago

World Health Organization WHO, Technical report series 781, . 1989. New approaches to improve road safety. Report of a WHO study group. Geneve: World Health Organization, WHO.

Harvard

World Health Organization W., Technical report series 781, . (1989). New approaches to improve road safety. Report of a WHO study group. Geneve: World Health Organization, WHO.

MLA

World Health Organization WHO, Technical report series 781, . New approaches to improve road safety. Report of a WHO study group. Geneve: World Health Organization, WHO. 1989.