World Health Organization. (2009). Global status report on road safety: Time for action. World Health Organization.
Cita Chicago (17th ed.)World Health Organization. Global Status Report on Road Safety: Time for Action. Geneva: World Health Organization, 2009.
Cita MLA (9th ed.)World Health Organization. Global Status Report on Road Safety: Time for Action. World Health Organization, 2009.
Atenció: Aquestes cites poden no estar 100% correctes.