Zenoni, William (June 30, 2012). "City of Concord CAFR"(PDF). cityofconcord.org. City of Concord. Archived from the original(PDF) on July 13, 2014. Retrieved June 17, 2013.
Zenoni, William (June 30, 2012). "City of Concord CAFR"(PDF). cityofconcord.org. City of Concord. Archived from the original(PDF) on July 13, 2014. Retrieved June 17, 2013.