(2010). Data systems: A road safety manual for decision-makers and practitioners. World Health Organization.
Chicago Style aipamenaData Systems: A Road Safety Manual for Decision-makers and Practitioners. Geneva: World Health Organization, 2010.
MLA aipamenaData Systems: A Road Safety Manual for Decision-makers and Practitioners. World Health Organization, 2010.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.