APA

U.S. Department of Transportation. FHWA. Office of Traffic Operations, . (1978). Manual on uniform traffic control devices (MUTCD). Washington DC: U.S. Department of Transportation. FHWA. Office of Traffic Operations.

Chicago

U.S. Department of Transportation. FHWA. Office of Traffic Operations, . 1978. Manual on uniform traffic control devices (MUTCD). Washington DC: U.S. Department of Transportation. FHWA. Office of Traffic Operations.

Harvard

U.S. Department of Transportation. FHWA. Office of Traffic Operations, . (1978). Manual on uniform traffic control devices (MUTCD). Washington DC: U.S. Department of Transportation. FHWA. Office of Traffic Operations.

MLA

U.S. Department of Transportation. FHWA. Office of Traffic Operations, . Manual on uniform traffic control devices (MUTCD). Washington DC: U.S. Department of Transportation. FHWA. Office of Traffic Operations. 1978.