The World Bank. (2004). Preparation of Vietnam road safety project - phase: Environmental assessment (Final report). U.S.A: Opus International Consultants.
Παραπομπή Chicago StyleThe World Bank. Preparation of Vietnam Road Safety Project - Phase: Environmental Assessment (Final Report). U.S.A: Opus International Consultants, 2004.
Παραπομπή MLAThe World Bank. Preparation of Vietnam Road Safety Project - Phase: Environmental Assessment (Final Report). U.S.A: Opus International Consultants, 2004.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.