Workers guard the entrance to the crash site at the Pentagon on September 14th. Damage to the Pentagon was caused by a hijacked commercial jetliner crashing into the Pentagon on September 11th. The terrorist attack caused extensive damage to the Pentagon and followed similar attacks on the twin towers of the World Trade Center in New York City

Chicago citation style
Department of Defense. American Forces Information Service. Defense Visual Information Center. 1994-. Workers guard the entrance to the crash site at the Pentagon on September 14th. Damage to the Pentagon was caused by a hijacked commercial jetliner crashing into the Pentagon on September 11th. The terrorist attack caused extensive damage to the Pentagon and followed similar attacks on the twin towers of the World Trade Center in New York City. 2001-09-14. Retrieved from the Digital Public Library of America, http://catalog.archives.gov/id/6604832. (Accessed June 20, 2018.)
APA citation style
Department of Defense. American Forces Information Service. Defense Visual Information Center. 1994-, (2001-09-14) Workers guard the entrance to the crash site at the Pentagon on September 14th. Damage to the Pentagon was caused by a hijacked commercial jetliner crashing into the Pentagon on September 11th. The terrorist attack caused extensive damage to the Pentagon and followed similar attacks on the twin towers of the World Trade Center in New York City. Retrieved from the Digital Public Library of America, http://catalog.archives.gov/id/6604832
MLA citation style
Department of Defense. American Forces Information Service. Defense Visual Information Center. 1994-. Retrieved from the Digital Public Library of America <http://catalog.archives.gov/id/6604832>.
Note: These citations are programmatically generated and may be incomplete.