APA

U.S. Department of Transportation. Federal Highway Administration, . (1986). Manual on uniform traffic control devices for streets and highways 1978. Washington, DC: U.S. Department of Transportation. Federal Highway Administration.

Chicago

U.S. Department of Transportation. Federal Highway Administration, . 1986. Manual on uniform traffic control devices for streets and highways 1978. Washington, DC: U.S. Department of Transportation. Federal Highway Administration.

Harvard

U.S. Department of Transportation. Federal Highway Administration, . (1986). Manual on uniform traffic control devices for streets and highways 1978. Washington, DC: U.S. Department of Transportation. Federal Highway Administration.

MLA

U.S. Department of Transportation. Federal Highway Administration, . Manual on uniform traffic control devices for streets and highways 1978. Washington, DC: U.S. Department of Transportation. Federal Highway Administration. 1986.