The battle damage infliction gun used to simulate anti-aircraft damage on aircraft during Exercise NIGHT TRAIN/GLOBAL SHIELD '84 includes, from left to right, 30 mm fragmentation, 20 mm high explosive, 20 mm incendiary, and 20 mm armor piercing

Chicago citation style
Department of Defense. American Forces Information Service. Defense Visual Information Center. 1994. The battle damage infliction gun used to simulate anti-aircraft damage on aircraft during Exercise NIGHT TRAIN/GLOBAL SHIELD '84 includes, from left to right, 30 mm fragmentation, 20 mm high explosive, 20 mm incendiary, and 20 mm armor piercing. 1984-04-02. Retrieved from the Digital Public Library of America, http://catalog.archives.gov/id/6390049. (Accessed September 22, 2018.)
APA citation style
Department of Defense. American Forces Information Service. Defense Visual Information Center. 1994, (1984-04-02) The battle damage infliction gun used to simulate anti-aircraft damage on aircraft during Exercise NIGHT TRAIN/GLOBAL SHIELD '84 includes, from left to right, 30 mm fragmentation, 20 mm high explosive, 20 mm incendiary, and 20 mm armor piercing. Retrieved from the Digital Public Library of America, http://catalog.archives.gov/id/6390049
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/6390049>.
Note: These citations are programmatically generated and may be incomplete.