APA (7th ed.) Citation

American Association of State Highway and Transportation Officials. (2018). A policy on geometric design of highways and streets, 2018 (7th edition.). American Association of State Highway and Transportation Officials.

Chicago Style (17th ed.) Citation

American Association of State Highway and Transportation Officials. A Policy on Geometric Design of Highways and Streets, 2018. 7th edition. Washington, DC: American Association of State Highway and Transportation Officials, 2018.

MLA (8th ed.) Citation

American Association of State Highway and Transportation Officials. A Policy on Geometric Design of Highways and Streets, 2018. 7th edition. American Association of State Highway and Transportation Officials, 2018.