United States. National Transportation Safety Board. (2007). Derailment of Chicago Transit Authority Train Number 220 between Clark/Lake and Grand/Milwaukee Stations Chicago, Illinois, July 11, 2006. National Transportation Safety Board.
Chicago Style (17th ed.) CitationUnited States. National Transportation Safety Board. Derailment of Chicago Transit Authority Train Number 220 Between Clark/Lake and Grand/Milwaukee Stations Chicago, Illinois, July 11, 2006. Washington, D.C.: National Transportation Safety Board, 2007.
MLA (9th ed.) CitationUnited States. National Transportation Safety Board. Derailment of Chicago Transit Authority Train Number 220 Between Clark/Lake and Grand/Milwaukee Stations Chicago, Illinois, July 11, 2006. National Transportation Safety Board, 2007.