American Association of State Highway and Transportation Officials, & American Association of State Highway and Transportation Officials. (1974). Highway desing and operational practices related to highway safety: American Association of State Highway and Transportation Officials. --. Washington: The Association.
Chicago Style CitationAmerican Association of State Highway and Transportation Officials, and American Association of State Highway and Transportation Officials. Highway Desing and Operational Practices Related to Highway Safety: American Association of State Highway and Transportation Officials. --. Washington: The Association, 1974.
MLA CitationAmerican Association of State Highway and Transportation Officials, and American Association of State Highway and Transportation Officials. Highway Desing and Operational Practices Related to Highway Safety: American Association of State Highway and Transportation Officials. --. Washington: The Association, 1974.