American Association of State Highway and Transportation Officials, United States. Federal Highway Administration, & Ross, H. E. (1989). Roadside safety design for small vehicles. Transportation Research Board, National Research Council.
Chicago-referens (17:e uppl.)American Association of State Highway and Transportation Officials, United States. Federal Highway Administration, och Hayes E. Ross. Roadside Safety Design for Small Vehicles. Washington, D.C: Transportation Research Board, National Research Council, 1989.
MLA-referens (9:e uppl.)American Association of State Highway and Transportation Officials, et al. Roadside Safety Design for Small Vehicles. Transportation Research Board, National Research Council, 1989.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.