Honor guards from the Marine Corps, Air Force, and Coast Guard participate in the internment of the Unknown Serviceman of the Vietnam Era at Arlington National Cemetery. They are in formation next to the Tomb of the Unknowns, waiting for the Vietnam Unknown to be carried out of the Memorial Amphitheater at the conclusion of the state funeral service

Chicago citation style
Department of Defense. American Forces Information Service. Defense Visual Information Center. 1994-. Honor guards from the Marine Corps, Air Force, and Coast Guard participate in the internment of the Unknown Serviceman of the Vietnam Era at Arlington National Cemetery. They are in formation next to the Tomb of the Unknowns, waiting for the Vietnam Unknown to be carried out of the Memorial Amphitheater at the conclusion of the state funeral service. 1984-05-28. Retrieved from the Digital Public Library of America, http://catalog.archives.gov/id/6384835. (Accessed June 18, 2018.)
APA citation style
Department of Defense. American Forces Information Service. Defense Visual Information Center. 1994-, (1984-05-28) Honor guards from the Marine Corps, Air Force, and Coast Guard participate in the internment of the Unknown Serviceman of the Vietnam Era at Arlington National Cemetery. They are in formation next to the Tomb of the Unknowns, waiting for the Vietnam Unknown to be carried out of the Memorial Amphitheater at the conclusion of the state funeral service. Retrieved from the Digital Public Library of America, http://catalog.archives.gov/id/6384835
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/6384835>.
Note: These citations are programmatically generated and may be incomplete.