The Color guard for the Coca-Cola 600, an official NASCAR race, consists of 8 service people, 2 from each service

Chicago citation style
Department of Defense. American Forces Information Service. Defense Visual Information Center. 1994-. The Color guard for the Coca-Cola 600, an official NASCAR race, consists of 8 service people, 2 from each service. 2000-05-28. Retrieved from the Digital Public Library of America, http://catalog.archives.gov/id/6517183. (Accessed June 19, 2018.)
APA citation style
Department of Defense. American Forces Information Service. Defense Visual Information Center. 1994-, (2000-05-28) The Color guard for the Coca-Cola 600, an official NASCAR race, consists of 8 service people, 2 from each service. Retrieved from the Digital Public Library of America, http://catalog.archives.gov/id/6517183
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/6517183>.
Note: These citations are programmatically generated and may be incomplete.