Não informado. Statistics of road traffic accidents in Europe and North America. United Nations, Economic Commission for Europe.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. Statistics of Road Traffic Accidents in Europe and North America. New York: United Nations, Economic Commission for Europe.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. Statistics of Road Traffic Accidents in Europe and North America. United Nations, Economic Commission for Europe.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.