United States. Federal Highway Administration. Implementation Division. (1976). Traffic control systems handbook. The Administration : for sale by the Supt. of Docs., U.S. Govt. Print. Off.
Chicago Style (17th ed.) CitationUnited States. Federal Highway Administration. Implementation Division. Traffic Control Systems Handbook. Washington: The Administration : for sale by the Supt. of Docs., U.S. Govt. Print. Off, 1976.
MLA (9th ed.) CitationUnited States. Federal Highway Administration. Implementation Division. Traffic Control Systems Handbook. The Administration : for sale by the Supt. of Docs., U.S. Govt. Print. Off, 1976.
Warning: These citations may not always be 100% accurate.