Citazione Stile APA (7a Edizione)
(2004). Road safety manual: Recommendations from the World Road Association (PIARC). Route market.
Citazione stile Chigago Style (17a edizione)
Road Safety Manual: Recommendations from the World Road Association (PIARC). Quebec: Route market, 2004.
Citatione MLA (9a ed.)
Road Safety Manual: Recommendations from the World Road Association (PIARC). Route market, 2004.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.