Natzke, Stefan (20 de junio de 2012). «What is the National Highway System?». National Highway System. Federal Highway Administration. Consultado el 1 de julio de 2012.
Michigan State Highway Department & Rand McNally (May 15, 1937). Official Michigan Highway Map (Map) (Summer ed.). Scale not given. Lansing: Michigan State Highway Department. Detroit & Vicinity inset. OCLC 12701143. Retrieved October 17, 2019 – via Michigan History Center.
Michigan State Highway Department & Rand McNally (December 1, 1937). Official Michigan Highway Map (Map) (Winter ed.). Scale not given. Lansing: Michigan State Highway Department. Detroit & Vicinity inset. OCLC 12701143. Retrieved October 17, 2019 – via Michigan History Center.
Michigan State Highway Department & Rand McNally (December 1, 1939). Official Michigan Highway Map (Map) (Winter ed.). Scale not given. Lansing: Michigan State Highway Department. Detroit & Vicinity inset. OCLC 12701143. Retrieved October 17, 2019 – via Michigan History Center.
Michigan State Highway Department (1958). Official Highway Map (Map). Scale not given. Lansing: Michigan State Highway Department. Detroit Metropolitan Area inset. §§ E6–F6. OCLC 12701120, 51856742. Retrieved October 17, 2019 – via Michigan History Center. (Includes all changes through July 1, 1958)
Michigan State Highway Department (1960). Official Highway Map (Map). Scale not given. Lansing: Michigan State Highway Department. Detroit Metropolitan Area inset. §§ E6–F6. OCLC 12701120, 81552576. Retrieved October 17, 2019 – via Michigan History Center. (Includes all changes through July 1, 1960)
Michigan State Highway Department (July 1, 1919). State of Michigan (Map). Scale not given. Lansing: Michigan State Highway Department. Lower Peninsula sheet. OCLC 15607244. Retrieved October 17, 2019 – via Michigan History Center.
Michigan State Highway Department (1963). Official Highway Map (Map). Scale not given. Lansing: Michigan State Highway Department. Detroit Metropolitan Area inset. OCLC 12701120. Retrieved October 17, 2019 – via Michigan History Center.
Michigan State Highway Department (1964). Official Highway Map (Map). Scale not given. Lansing: Michigan State Highway Department. Detroit Metropolitan Area inset. OCLC 12701120, 81213707. Retrieved October 17, 2019 – via Michigan History Center.
Michigan Department of Transportation (1999). Michigan Department of Transportation Map (Map). c. 1:158,400. Lansing: Michigan Department of Transportation. Detroit and Vicinity inset. §§ A10–A11. OCLC 42778335, 55974644. Retrieved October 17, 2019 – via Michigan History Center.
Michigan Department of Transportation (2001). Michigan, Great Lakes Great Times: Official Department of Transportation Map (Map). c. 1:158,400. Lansing: Michigan Department of Transportation. Detroit and Vicinity inset. OCLC 42778335. Retrieved October 17, 2019 – via Michigan History Center.
Bureau of Transportation Planning (2008). «Traffic Monitoring Information System». Michigan Department of Transportation. Consultado el 24 de abril de 2011.
Mason, Philip P. (1959). Michigan Highways from Indian Trails to Expressways. Ann Arbor, MI: Braun-Brumfield. p. 3. OCLC23314983.
Lingeman, Stanley D. (6 de abril de 2001). Michigan Highway History Timeline 1701–2001: 300 Years of Progress. Lansing: Library of Michigan. pp. 1-2. OCLC435640179.
Michigan Department of Transportation (2002). Michigan, Great Lakes Great Times: Official Department of Transportation Map (Map). c. 1:158,400. Lansing: Michigan Department of Transportation. Detroit and Vicinity inset. OCLC 42778335.