American Association of State Highway and Transportation Officials Task Force for Roadside Safety. (1996). Roadside design guide. American Association of State Highway and Transportation Officials.
Παραπομπή σε μορφή Chicago (17η εκδ.)American Association of State Highway and Transportation Officials Task Force for Roadside Safety. Roadside Design Guide. American Association of State Highway and Transportation Officials, 1996.
Παραπομπή σε μορφή MLA (8th εκδ.)American Association of State Highway and Transportation Officials Task Force for Roadside Safety. Roadside Design Guide. American Association of State Highway and Transportation Officials, 1996.
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