Major General (MGEN) Judd Blaisdell, USAF, (left), Air STAFF, MGEN Tim McMahon, USAF, 20th AF/CC, and Colonel Steve Lanning, USAF, (right), 30th SW/CC greet GUARDIAN CHALLENGE competitors from the 50th Space Wing (SW). GUARDIAN CHALLENGE, the world's premier space and missile competition, is a four-day event hosted annually at Vandenberg AFB, CA "to recognize the best and demonstrate the commands warfighting skills. GUARDIAN CHALLENGE creates competition-tough crews; improves readiness and combat capabilities through preparation, innovation and sharing; enhances esprit de corps and strengthens teamwork across all mission areas in the command."

Chicago citation style
Department of Defense. American Forces Information Service. Defense Visual Information Center. 1994-. Major General (MGEN) Judd Blaisdell, USAF, (left), Air STAFF, MGEN Tim McMahon, USAF, 20th AF/CC, and Colonel Steve Lanning, USAF, (right), 30th SW/CC greet GUARDIAN CHALLENGE competitors from the 50th Space Wing (SW). GUARDIAN CHALLENGE, the world's premier space and missile competition, is a four-day event hosted annually at Vandenberg AFB, CA "to recognize the best and demonstrate the commands warfighting skills. GUARDIAN CHALLENGE creates competition-tough crews; improves readiness and combat capabilities through preparation, innovation and sharing; enhances esprit de corps and strengthens teamwork across all mission areas in the command.". 2001-05-06. Retrieved from the Digital Public Library of America, http://catalog.archives.gov/id/6600202. (Accessed June 24, 2018.)
APA citation style
Department of Defense. American Forces Information Service. Defense Visual Information Center. 1994-, (2001-05-06) Major General (MGEN) Judd Blaisdell, USAF, (left), Air STAFF, MGEN Tim McMahon, USAF, 20th AF/CC, and Colonel Steve Lanning, USAF, (right), 30th SW/CC greet GUARDIAN CHALLENGE competitors from the 50th Space Wing (SW). GUARDIAN CHALLENGE, the world's premier space and missile competition, is a four-day event hosted annually at Vandenberg AFB, CA "to recognize the best and demonstrate the commands warfighting skills. GUARDIAN CHALLENGE creates competition-tough crews; improves readiness and combat capabilities through preparation, innovation and sharing; enhances esprit de corps and strengthens teamwork across all mission areas in the command.". Retrieved from the Digital Public Library of America, http://catalog.archives.gov/id/6600202
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/6600202>.
Note: These citations are programmatically generated and may be incomplete.