Cita APA (7a ed.)

American Association of State Highway and Transportation Officials. (2011). A policy on geometric design of highways and streets, 2011 (6th ed.). American Association of State Highway and Transportation Officials.

Cita Chicago Style (17a ed.)

American Association of State Highway and Transportation Officials. A Policy on Geometric Design of Highways and Streets, 2011. 6th ed. Washington, D.C.: American Association of State Highway and Transportation Officials, 2011.

Cita MLA (8a ed.)

American Association of State Highway and Transportation Officials. A Policy on Geometric Design of Highways and Streets, 2011. 6th ed. American Association of State Highway and Transportation Officials, 2011.