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.
Lua i Stíl Chicago (17ú heag.)American Association of State Highway and Transportation Officials, United States. Federal Highway Administration, agus Hayes E. Ross. Roadside Safety Design for Small Vehicles. Washington, D.C: Transportation Research Board, National Research Council, 1989.
Lua MLA (9ú heag.)American Association of State Highway and Transportation Officials, et al. Roadside Safety Design for Small Vehicles. Transportation Research Board, National Research Council, 1989.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.