”The Attack Looms”, 9/11 Commission Report. Määritä julkaisija!Teoksen verkkoversio (viitattu May 29, 2008). Arkistoitu October 23, 2013.
”Chronology”, Monograph on 9/11 and Terrorist Travel, s. 22. National Commission on Terrorist Attacks Upon the United States. Teoksen verkkoversio (PDF) (viitattu May 25, 2008). Arkistoitu May 29, 2008.
Olson, Bradley: MD. Was Among Last Stops For Hijackers; Those Who Recall Encounters Are Haunted By Proximity To Agents Of Tragic Event. The Baltimore Sun, September 9, 2006. Artikkelin verkkoversio. Viitattu May 30, 2008. Arkistoitu lokakuu 22, 2012.
Johnson, Glen: Probe reconstructs horror, calculated attacks on planes. The Boston Globe, November 23, 2001. Artikkelin verkkoversio. Viitattu June 1, 2008. Arkistoitu kesäkuu 8, 2008.
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American Airlines Flight 77. Määritä julkaisu!2001. CNN. Artikkelin verkkoversio. Viitattu May 29, 2008. Arkistoitu toukokuu 12, 2008.
Borger, Julian: 'Everyone was screaming, crying, running. It's like a war zone'. The Guardian, September 12, 2001. London. Artikkelin verkkoversio. Viitattu June 19, 2008. Arkistoitu toukokuu 16, 2008.
Mlakar, Paul F.: The Pentagon Building Performance Report. Määritä julkaisija!Teoksen verkkoversio (PDF) (viitattu June 19, 2008). Arkistoitu June 24, 2008.
Schmitt, Eric: To the Minute, Panel Paints a Grim Portrait of Day's Terror. The New York Times, June 18, 2004. Artikkelin verkkoversio. Viitattu June 1, 2008. Arkistoitu huhtikuu 9, 2014.
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Chen, David W: A Nation Challenged: The Suspect; Man Traveled Across U.S. In His Quest to Be a Pilot. The New York Times, September 18, 2001. Artikkelin verkkoversio. Viitattu May 29, 2008.
Yardley, Jim: Traces of Terror: The F.B.I.; For Agent in Phoenix, the Cause of Many Frustrations Extended to His Own Office. The New York Times, June 19, 2002. Artikkelin verkkoversio. Viitattu June 4, 2008. Arkistoitu maaliskuu 17, 2009.
pbs.org
The Spy Factory, PBS Frontline episode based on James Bamford's book, Shadow Factory (Arkistoitu – Internet Archive)
Goldstein, Amy: Hijackers Led Core Group. The Washington Post, September 30, 2001. Artikkelin verkkoversio. Viitattu May 29, 2008. Arkistoitu toukokuu 5, 2008.
Orecklin, Michele: Why Argenbright Sets Off Alarms. Time, November 19, 2001. Artikkelin verkkoversio. Viitattu May 30, 2008. Arkistoitu elokuu 23, 2013.
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9/11 Commission: ”Notes”, 9/11 Commission Report. National Commission on Terrorist Attacks Upon the United States, 2004. Teoksen verkkoversio (viitattu May 30, 2008). Arkistoitu May 30, 2008.
”'We Have Some Planes'”, 9/11 Commission Report. National Commission on Terrorist Attacks Upon the United States, 2004. Teoksen verkkoversio (viitattu May 30, 2008). Arkistoitu May 14, 2008.
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Parker, Laura: Four flights, four tales of terror. USA Today, September 13, 2001. Artikkelin verkkoversio. Viitattu June 18, 2008.
Fisher, Marc: On Flight 77: 'Our Plane Is Being Hijacked'. The Washington Post, September 12, 2001. Artikkelin verkkoversio. Viitattu June 1, 2008.
Maclean, John N: America Under Attack: A chronicle of chaos and heroism at the Pentagon. The Washington Post, June 1, 2008. Artikkelin verkkoversio. Viitattu June 4, 2008.
Yardley, Jim: Traces of Terror: The F.B.I.; For Agent in Phoenix, the Cause of Many Frustrations Extended to His Own Office. The New York Times, June 19, 2002. Artikkelin verkkoversio. Viitattu June 4, 2008. Arkistoitu maaliskuu 17, 2009.
”The Attack Looms”, 9/11 Commission Report. Määritä julkaisija!Teoksen verkkoversio (viitattu May 29, 2008). Arkistoitu October 23, 2013.
The Spy Factory, PBS Frontline episode based on James Bamford's book, Shadow Factory (Arkistoitu – Internet Archive)
Goldstein, Amy: Hijackers Led Core Group. The Washington Post, September 30, 2001. Artikkelin verkkoversio. Viitattu May 29, 2008. Arkistoitu toukokuu 5, 2008.
”Chronology”, Monograph on 9/11 and Terrorist Travel, s. 22. National Commission on Terrorist Attacks Upon the United States. Teoksen verkkoversio (PDF) (viitattu May 25, 2008). Arkistoitu May 29, 2008.
Olson, Bradley: MD. Was Among Last Stops For Hijackers; Those Who Recall Encounters Are Haunted By Proximity To Agents Of Tragic Event. The Baltimore Sun, September 9, 2006. Artikkelin verkkoversio. Viitattu May 30, 2008. Arkistoitu lokakuu 22, 2012.
9/11 Commission: ”Notes”, 9/11 Commission Report. National Commission on Terrorist Attacks Upon the United States, 2004. Teoksen verkkoversio (viitattu May 30, 2008). Arkistoitu May 30, 2008.
Federal Bureau of Investigation: Hijackers' Timeline (PDF) February 4, 2008. 9/11 Myths. Arkistoitu elokuu 3, 2008. Viitattu August 1, 2008.
American Airlines Flight 77. Määritä julkaisu!2001. CNN. Artikkelin verkkoversio. Viitattu May 29, 2008. Arkistoitu toukokuu 12, 2008.
”'We Have Some Planes'”, 9/11 Commission Report. National Commission on Terrorist Attacks Upon the United States, 2004. Teoksen verkkoversio (viitattu May 30, 2008). Arkistoitu May 14, 2008.
Johnson, Glen: Probe reconstructs horror, calculated attacks on planes. The Boston Globe, November 23, 2001. Artikkelin verkkoversio. Viitattu June 1, 2008. Arkistoitu kesäkuu 8, 2008.
Schmitt, Eric: To the Minute, Panel Paints a Grim Portrait of Day's Terror. The New York Times, June 18, 2004. Artikkelin verkkoversio. Viitattu June 1, 2008. Arkistoitu huhtikuu 9, 2014.
Mlakar, Paul F.: The Pentagon Building Performance Report. Määritä julkaisija!Teoksen verkkoversio (PDF) (viitattu June 19, 2008). Arkistoitu June 24, 2008.
Borger, Julian: 'Everyone was screaming, crying, running. It's like a war zone'. The Guardian, September 12, 2001. London. Artikkelin verkkoversio. Viitattu June 19, 2008. Arkistoitu toukokuu 16, 2008.
Documentary Photographs Library of Congress, Prints and Photographs Division. Arkistoitu marraskuu 11, 2006. Viitattu November 12, 2006.
Anderson, Porter: Witnesses to the moment: Workers' voices. Määritä julkaisu!September 11, 2001. CNN. Artikkelin verkkoversio. Viitattu June 10, 2008. Arkistoitu kesäkuu 30, 2009.