Sunset on the last day of Guardian Challenge 2004 at Vandenberg Air Force Base (AFB), California (CA). Guardian Challenge, the world's premier space and missile competition, is a four-day event hosted annually at Vandenberg AFB

Chicago citation style
Department of Defense. American Forces Information Service. Defense Visual Information Center. 1994-. Sunset on the last day of Guardian Challenge 2004 at Vandenberg Air Force Base (AFB), California (CA). Guardian Challenge, the world's premier space and missile competition, is a four-day event hosted annually at Vandenberg AFB. 2004-05-06. Retrieved from the Digital Public Library of America, http://catalog.archives.gov/id/6663063. (Accessed July 17, 2018.)
APA citation style
Department of Defense. American Forces Information Service. Defense Visual Information Center. 1994-, (2004-05-06) Sunset on the last day of Guardian Challenge 2004 at Vandenberg Air Force Base (AFB), California (CA). Guardian Challenge, the world's premier space and missile competition, is a four-day event hosted annually at Vandenberg AFB. Retrieved from the Digital Public Library of America, http://catalog.archives.gov/id/6663063
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/6663063>.
Note: These citations are programmatically generated and may be incomplete.