At the front gate of Spangdahlem Air Base, Germany, an unidentified US Air Force member arranges the flowers left by Americans and local German nationals in memory of the victims of the terrorist attacks on the World Trade Centers Twin Towers in New York and at the Pentagon. When hijackers deliberately flew civilian airliners into the buildings, on the morning of 11 September 2001

Chicago citation style
Department of Defense. American Forces Information Service. Defense Visual Information Center. 1994-. At the front gate of Spangdahlem Air Base, Germany, an unidentified US Air Force member arranges the flowers left by Americans and local German nationals in memory of the victims of the terrorist attacks on the World Trade Centers Twin Towers in New York and at the Pentagon. When hijackers deliberately flew civilian airliners into the buildings, on the morning of 11 September 2001. 2001-09-12. Retrieved from the Digital Public Library of America, http://catalog.archives.gov/id/6524282. (Accessed June 20, 2018.)
APA citation style
Department of Defense. American Forces Information Service. Defense Visual Information Center. 1994-, (2001-09-12) At the front gate of Spangdahlem Air Base, Germany, an unidentified US Air Force member arranges the flowers left by Americans and local German nationals in memory of the victims of the terrorist attacks on the World Trade Centers Twin Towers in New York and at the Pentagon. When hijackers deliberately flew civilian airliners into the buildings, on the morning of 11 September 2001. Retrieved from the Digital Public Library of America, http://catalog.archives.gov/id/6524282
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/6524282>.
Note: These citations are programmatically generated and may be incomplete.