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Code of OrdinancesArchived November 16, 2006, at the Wayback Machine, City of Springfield, Title III: Chapter 32: Article I – Executive Branch. Municode.com. Retrieved February 25, 2007.
Code of OrdinancesArchived November 16, 2006, at the Wayback Machine, City of Springfield, Title I: Chapter 30: General Provisions. Municode.com. Retrieved February 25, 2007.
Code of OrdinancesArchived November 16, 2006, at the Wayback Machine, City of Springfield, Title III: Chapter 31: Legislative. Municode.com. Retrieved February 25, 2007.
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sps186.org
SchoolsArchived March 12, 2016, at the Wayback Machine, Springfield Public School District 186. Retrieved February 24, 2007
Pearson, Rick; Long, Ray (February 10, 2007). "Obama: I'm running for president". Chicago Tribune. Archived from the original on October 15, 2008. Retrieved March 12, 2012.
Martin, Andrea. "Carpenter Street Underpass"(PDF). Springfield Railroads Improvement Project. US Department of Transportation Federal Railroad Administration and the Illinois Historic Preservation Agency. Archived from the original(PDF) on May 1, 2016. Retrieved May 23, 2018.
Harris, Patricia; Lyon, David (November 20, 2006). "The hottest thing in sandwiches". Boston Globe. Archived from the original on December 2, 2006. Retrieved February 24, 2007.
Code of OrdinancesArchived November 16, 2006, at the Wayback Machine, City of Springfield, Title III: Chapter 32: Article I – Executive Branch. Municode.com. Retrieved February 25, 2007.
Code of OrdinancesArchived November 16, 2006, at the Wayback Machine, City of Springfield, Title I: Chapter 30: General Provisions. Municode.com. Retrieved February 25, 2007.
Code of OrdinancesArchived November 16, 2006, at the Wayback Machine, City of Springfield, Title III: Chapter 31: Legislative. Municode.com. Retrieved February 25, 2007.
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