Former U.S. Secretary of Defense, William S. Cohen (at lectern), the twentieth Secretary of Defense, speaks during a ceremony to unveil his official portrait, at the Pentagon on March 21, 2003. OSD Package No. A07D-00528 (DOD PHOTO by Helene C. Stikkel) (Released)

Chicago citation style
Department of Defense. American Forces Information Service. Defense Visual Information Center. 1994. Former U.S. Secretary of Defense, William S. Cohen (at lectern), the twentieth Secretary of Defense, speaks during a ceremony to unveil his official portrait, at the Pentagon on March 21, 2003. OSD Package No. A07D-00528 (DOD PHOTO by Helene C. Stikkel) (Released). 2003-03-21. Retrieved from the Digital Public Library of America, http://catalog.archives.gov/id/6681093. (Accessed September 19, 2018.)
APA citation style
Department of Defense. American Forces Information Service. Defense Visual Information Center. 1994, (2003-03-21) Former U.S. Secretary of Defense, William S. Cohen (at lectern), the twentieth Secretary of Defense, speaks during a ceremony to unveil his official portrait, at the Pentagon on March 21, 2003. OSD Package No. A07D-00528 (DOD PHOTO by Helene C. Stikkel) (Released). Retrieved from the Digital Public Library of America, http://catalog.archives.gov/id/6681093
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/6681093>.
Note: These citations are programmatically generated and may be incomplete.