Natzke, Stefan; Neathery, Mike; Adderly, Kevin (September 26, 2012). "What is the National Highway System?". National Highway System. Federal Highway Administration. Retrieved September 11, 2019.
KDOT (2007). 2007 McPherson County Map(PDF) (Map). Scale not given. Topeka: KDOT. Retrieved January 20, 2022.
Bureau of Transportation Planning (April 2010). City of McPherson(PDF) (Map). Scale not given. KDOT City Maps. Topeka: Kansas Department of Transportation. Retrieved January 20, 2022.
State Highway Commission of Kansas (August 28, 1968). "Resolution for Redesignation of Road". Topeka: State Highway Commission of Kansas. Retrieved September 11, 2019.