US Air Force (USAF) personnel assigned to the 91st Space Wing (SW), Minot Air Force Base (AFB), North Dakota (ND) raise their batons during a team cheer after arriving at Vandenberg Air Force Base (AFB) California (CA), to participate in Exercise GUARDIAN CHALLENGE 2002. Guardian Challenge, a four-day space and missile competition, is hosted annually at Vandenberg AFB, CA to test the wartime readiness of Air Force Space Command (AFSPC) professionals

Chicago citation style
Department of Defense. American Forces Information Service. Defense Visual Information Center. 1994-. US Air Force (USAF) personnel assigned to the 91st Space Wing (SW), Minot Air Force Base (AFB), North Dakota (ND) raise their batons during a team cheer after arriving at Vandenberg Air Force Base (AFB) California (CA), to participate in Exercise GUARDIAN CHALLENGE 2002. Guardian Challenge, a four-day space and missile competition, is hosted annually at Vandenberg AFB, CA to test the wartime readiness of Air Force Space Command (AFSPC) professionals. 2002-05-06. Retrieved from the Digital Public Library of America, http://catalog.archives.gov/id/6629030. (Accessed July 22, 2018.)
APA citation style
Department of Defense. American Forces Information Service. Defense Visual Information Center. 1994-, (2002-05-06) US Air Force (USAF) personnel assigned to the 91st Space Wing (SW), Minot Air Force Base (AFB), North Dakota (ND) raise their batons during a team cheer after arriving at Vandenberg Air Force Base (AFB) California (CA), to participate in Exercise GUARDIAN CHALLENGE 2002. Guardian Challenge, a four-day space and missile competition, is hosted annually at Vandenberg AFB, CA to test the wartime readiness of Air Force Space Command (AFSPC) professionals. Retrieved from the Digital Public Library of America, http://catalog.archives.gov/id/6629030
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/6629030>.
Note: These citations are programmatically generated and may be incomplete.