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-viite (17. p.)American Association of State Highway and Transportation Officials, United States. Federal Highway Administration, ja Hayes E. Ross. Roadside Safety Design for Small Vehicles. Washington, D.C: Transportation Research Board, National Research Council, 1989.
MLA-viite (9. p.)American Association of State Highway and Transportation Officials, et al. Roadside Safety Design for Small Vehicles. Transportation Research Board, National Research Council, 1989.
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