Dyfyniad APA

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.

Dyfyniad Arddull Chicago

American Association of State Highway and Transportation Officials, United States. Federal Highway Administration, and Hayes E. Ross. Roadside Safety Design for Small Vehicles. Washington, D.C: Transportation Research Board, National Research Council, 1989.

Dyfyniad MLA

American Association of State Highway and Transportation Officials, et al. Roadside Safety Design for Small Vehicles. Transportation Research Board, National Research Council, 1989.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.