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Clark, Robert. Plane Hitting South Tower. New York City.
History.com Editors. “September 11 Attacks.” History.com, A&E Television Networks, 17 Feb. 2010, www.history.com/topics/21st-century/9-11-attacks.
“September 11 Terror Attacks Fast Facts.” CNN, Cable News Network, 13 Nov. 2019, www.cnn.com/2013/07/27/us/september-11-anniversary-fast-facts/index.html.
Leung, Canice, and Sara K. Schwittek. “Defining Images from the 9/11 Attacks | Pictures.” Reuters, Thomson Reuters, 10 Sept. 2019, www.reuters.com/news/picture/defining-images-from-the-9-11-attacks-idUSRTS2Q0UX
Press, The Associated. “Remaining Wreckage of Flight 93 Quietly Buried at Memorial.” Pennlive, 9 July 2018, www.pennlive.com/news/2018/07/remaining_wreckage_of_flight_9_2.html.
“9/11: The Photographs That Moved Them Most.” Time, Time Photo Department, 8 Sept. 2011, time.com/3449480/911-the-photographs-that-moved-them-most/
Roos, Dave. “How the Pentagon’s Design Saved Lives on September 11.” History.com, A&E Television Networks, 9 Sept. 2019, www.history.com/news/pentagon-design-september-11-attacks.
History.com Editors. “United Airlines Flight 93 Crashes in Pennsylvania.” History.com, A&E Television Networks, 30 May 2012, www.history.com/topics/21st-century/united-airlines-flight-93-crashes-in-pennsylvania-video.
Simon, Darran. “Iconic 9/11 Flag: The Man Who Turned It In.” CNN, Cable News Network, 29 Sept. 2016, www.cnn.com/2016/09/28/us/ground-zero-flag-returns/index.html.
