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 October 18, 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.