Cita APA

United States. Federal Highway Administration. (1989). Manual on uniform traffic control devices: For streets and highways (1988 ed.). U.S. Dept. of Transportation, Federal Highway Administration For sale by the Supt. of Docs., U.S. G.P.O.

Citación estilo Chicago

United States. Federal Highway Administration. Manual on Uniform Traffic Control Devices: For Streets and Highways. 1988 ed. Washington, D.C: U.S. Dept. of Transportation, Federal Highway Administration For sale by the Supt. of Docs., U.S. G.P.O, 1989.

Cita MLA

United States. Federal Highway Administration. Manual on Uniform Traffic Control Devices: For Streets and Highways. 1988 ed. U.S. Dept. of Transportation, Federal Highway Administration For sale by the Supt. of Docs., U.S. G.P.O, 1989.