(1996). A guide to road safety engineering in Ireland. Dublin: Stationary Office.
Παραπομπή Chicago StyleA Guide to Road Safety Engineering in Ireland. Dublin: Stationary Office, 1996.
Παραπομπή MLAA Guide to Road Safety Engineering in Ireland. Dublin: Stationary Office, 1996.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.