US Air Force (USAF) STAFF Sergeant (SSGT) Antwane Scott (standing), 86th Communications Squadron (CS), instructs USAF AIRMAN First Class (A1C) Aaron Chandler, 86th CS, on how to perform a site frequency check, by verifying video levels are accurate on a Oscilloscope. These levels are checked every 7 days to ensure the proper video levels go to the scopes used by air traffic controllers

Chicago citation style
Department of Defense. American Forces Information Service. Defense Visual Information Center. 1994. US Air Force (USAF) STAFF Sergeant (SSGT) Antwane Scott (standing), 86th Communications Squadron (CS), instructs USAF AIRMAN First Class (A1C) Aaron Chandler, 86th CS, on how to perform a site frequency check, by verifying video levels are accurate on a Oscilloscope. These levels are checked every 7 days to ensure the proper video levels go to the scopes used by air traffic controllers. 2004-01-08. Retrieved from the Digital Public Library of America, http://catalog.archives.gov/id/6646256. (Accessed October 18, 2018.)
APA citation style
Department of Defense. American Forces Information Service. Defense Visual Information Center. 1994, (2004-01-08) US Air Force (USAF) STAFF Sergeant (SSGT) Antwane Scott (standing), 86th Communications Squadron (CS), instructs USAF AIRMAN First Class (A1C) Aaron Chandler, 86th CS, on how to perform a site frequency check, by verifying video levels are accurate on a Oscilloscope. These levels are checked every 7 days to ensure the proper video levels go to the scopes used by air traffic controllers. Retrieved from the Digital Public Library of America, http://catalog.archives.gov/id/6646256
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/6646256>.
Note: These citations are programmatically generated and may be incomplete.