US Air Force (USAF) MASTER Sergeant (MSGT) Robert W. Dunn, the "Hawkman" stops to flex for the camera during exercise Guardian Challenge at Vandenberg Air Force Base (AFB), California (CA). Guardian Challenge is the world's premier space and missile competition, a four-day event hosted annually at Vandenberg AFB, CA

Chicago citation style
Department of Defense. American Forces Information Service. Defense Visual Information Center. 1994. US Air Force (USAF) MASTER Sergeant (MSGT) Robert W. Dunn, the "Hawkman" stops to flex for the camera during exercise Guardian Challenge at Vandenberg Air Force Base (AFB), California (CA). Guardian Challenge is the world's premier space and missile competition, a four-day event hosted annually at Vandenberg AFB, CA. 2004-05-02. Retrieved from the Digital Public Library of America, http://catalog.archives.gov/id/6662653. (Accessed October 15, 2018.)
APA citation style
Department of Defense. American Forces Information Service. Defense Visual Information Center. 1994, (2004-05-02) US Air Force (USAF) MASTER Sergeant (MSGT) Robert W. Dunn, the "Hawkman" stops to flex for the camera during exercise Guardian Challenge at Vandenberg Air Force Base (AFB), California (CA). Guardian Challenge is the world's premier space and missile competition, a four-day event hosted annually at Vandenberg AFB, CA. Retrieved from the Digital Public Library of America, http://catalog.archives.gov/id/6662653
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/6662653>.
Note: These citations are programmatically generated and may be incomplete.