Wearing biological-chemical protective masks, three soldiers of the 24th Infantry Division (Mechanized) man an M-163 Vulcan self-propelled anti-aircraft gun during an exercise at the National Training Center. The M-163 consists of an M-168 20mm Vulcan cannon with radar fire control mounted on a modified M-113 armored personnel carrier

Chicago citation style
Department of Defense. American Forces Information Service. Defense Visual Information Center. 1994-. Wearing biological-chemical protective masks, three soldiers of the 24th Infantry Division (Mechanized) man an M-163 Vulcan self-propelled anti-aircraft gun during an exercise at the National Training Center. The M-163 consists of an M-168 20mm Vulcan cannon with radar fire control mounted on a modified M-113 armored personnel carrier. 1988-11-01. Retrieved from the Digital Public Library of America, http://catalog.archives.gov/id/6446202. (Accessed June 21, 2018.)
APA citation style
Department of Defense. American Forces Information Service. Defense Visual Information Center. 1994-, (1988-11-01) Wearing biological-chemical protective masks, three soldiers of the 24th Infantry Division (Mechanized) man an M-163 Vulcan self-propelled anti-aircraft gun during an exercise at the National Training Center. The M-163 consists of an M-168 20mm Vulcan cannon with radar fire control mounted on a modified M-113 armored personnel carrier. Retrieved from the Digital Public Library of America, http://catalog.archives.gov/id/6446202
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/6446202>.
Note: These citations are programmatically generated and may be incomplete.