The Duke and Duchess from Kent are welcomed upon their arrival for a visit to the United States

Chicago citation style
Department of Defense. American Forces Information Service. Defense Visual Information Center. 1994-. The Duke and Duchess from Kent are welcomed upon their arrival for a visit to the United States. 1981-09-21. Retrieved from the Digital Public Library of America, http://catalog.archives.gov/id/6362052. (Accessed July 21, 2018.)
APA citation style
Department of Defense. American Forces Information Service. Defense Visual Information Center. 1994-, (1981-09-21) The Duke and Duchess from Kent are welcomed upon their arrival for a visit to the United States. Retrieved from the Digital Public Library of America, http://catalog.archives.gov/id/6362052
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/6362052>.
Note: These citations are programmatically generated and may be incomplete.