United States. Federal Highway Administration. (1989). Notice of proposed amendments to the manual on uniform traffic control devices, FHWA Docket No. 89-1, Notice No. 6. U.S. Dept. of Transportation, Federal Highway Administration.
Chicago Style (17th ed.) CitationUnited States. Federal Highway Administration. Notice of Proposed Amendments to the Manual on Uniform Traffic Control Devices, FHWA Docket No. 89-1, Notice No. 6. [Washington, D.C.?]: U.S. Dept. of Transportation, Federal Highway Administration, 1989.
MLA (9th ed.) CitationUnited States. Federal Highway Administration. Notice of Proposed Amendments to the Manual on Uniform Traffic Control Devices, FHWA Docket No. 89-1, Notice No. 6. U.S. Dept. of Transportation, Federal Highway Administration, 1989.
Warning: These citations may not always be 100% accurate.