Federal Bureau of Investigation (February 4, 2008). "Hijackers' Timeline"(PDF). NEFA Foundation. pp. 93, 93. Archived from the original(PDF) on October 12, 2008. Retrieved October 6, 2008.
Federal Bureau of Investigation (February 4, 2008). "Hijackers' Timeline"(PDF). NEFA Foundation. p. 153. Archived from the original(PDF) on October 12, 2008. Retrieved October 6, 2008.
Federal Bureau of Investigation (February 4, 2008). "Hijackers' Timeline"(PDF). NEFA Foundation. p. 162. Archived from the original(PDF) on October 12, 2008. Retrieved October 6, 2008.
Federal Bureau of Investigation (February 4, 2008). "Hijackers' Timeline"(PDF). NEFA Foundation. p. 176. Archived from the original(PDF) on October 12, 2008. Retrieved October 6, 2008.
Federal Bureau of Investigation (February 4, 2008). "Hijackers' Timeline"(PDF). NEFA Foundation. pp. 249, 257. Archived from the original(PDF) on October 12, 2008. Retrieved October 6, 2008.
Federal Bureau of Investigation (February 4, 2008). "Hijackers' Timeline"(PDF). NEFA Foundation. pp. 278, 284, 292. Archived from the original(PDF) on October 12, 2008. Retrieved October 6, 2008.
nist.gov
wtc.nist.gov
Lawson, J. Randall, Robert L. Vettori (September 2005). "NIST NCSTAR 1–8 – The Emergency Response"(PDF). National Institute of Standards and Technology. p. 37. Archived(PDF) from the original on October 5, 2008. Retrieved October 5, 2008.{{cite web}}: CS1 maint: multiple names: authors list (link)
"9/11 and Terrorist Travel"(PDF). Staff Report. National Commission on Terrorist Attacks Upon the United States. 2004. p. 33. Archived(PDF) from the original on September 16, 2012. Retrieved September 26, 2008.
"9/11 and Terrorist Travel"(PDF). Staff Report. National Commission on Terrorist Attacks Upon the United States. 2004. p. 24. Archived(PDF) from the original on September 16, 2012. Retrieved September 26, 2008.
"Hijackers' True Name Usage"(PDF). United States District Court – Eastern District of Virginia. p. 2. Archived(PDF) from the original on May 12, 2009. Retrieved October 9, 2008.
"9/11 and Terrorist Travel"(PDF). Staff Report. National Commission on Terrorist Attacks Upon the United States. 2004. p. 33. Archived(PDF) from the original on September 16, 2012. Retrieved September 26, 2008.
Federal Bureau of Investigation (February 4, 2008). "Hijackers' Timeline"(PDF). NEFA Foundation. pp. 93, 93. Archived from the original(PDF) on October 12, 2008. Retrieved October 6, 2008.
Federal Bureau of Investigation (February 4, 2008). "Hijackers' Timeline"(PDF). NEFA Foundation. p. 153. Archived from the original(PDF) on October 12, 2008. Retrieved October 6, 2008.
"9/11 and Terrorist Travel"(PDF). Staff Report. National Commission on Terrorist Attacks Upon the United States. 2004. p. 24. Archived(PDF) from the original on September 16, 2012. Retrieved September 26, 2008.
Federal Bureau of Investigation (February 4, 2008). "Hijackers' Timeline"(PDF). NEFA Foundation. p. 162. Archived from the original(PDF) on October 12, 2008. Retrieved October 6, 2008.
Federal Bureau of Investigation (February 4, 2008). "Hijackers' Timeline"(PDF). NEFA Foundation. p. 176. Archived from the original(PDF) on October 12, 2008. Retrieved October 6, 2008.
"Hijackers' True Name Usage"(PDF). United States District Court – Eastern District of Virginia. p. 2. Archived(PDF) from the original on May 12, 2009. Retrieved October 9, 2008.
Federal Bureau of Investigation (February 4, 2008). "Hijackers' Timeline"(PDF). NEFA Foundation. pp. 249, 257. Archived from the original(PDF) on October 12, 2008. Retrieved October 6, 2008.
Federal Bureau of Investigation (February 4, 2008). "Hijackers' Timeline"(PDF). NEFA Foundation. pp. 278, 284, 292. Archived from the original(PDF) on October 12, 2008. Retrieved October 6, 2008.
Lawson, J. Randall, Robert L. Vettori (September 2005). "NIST NCSTAR 1–8 – The Emergency Response"(PDF). National Institute of Standards and Technology. p. 37. Archived(PDF) from the original on October 5, 2008. Retrieved October 5, 2008.{{cite web}}: CS1 maint: multiple names: authors list (link)