Minnesota State Legislature (2010). "§ 161.114, Constitutional Trunk Highways". Minnesota Statutes. Minnesota Office of the Revisor of Statutes. Retrieved October 13, 2010.
1961 Official Road Map, Minnesota (Map). Cartography by The H.M. Gousha Co. Minnesota Department of Highways. 1961. § H-14 through H-15. Retrieved January 26, 2019.