East German guards stand atop the Berlin Wall beside the Brandenburg Gate following the official opening of the gate on December 22nd

Chicago citation style
Department of Defense. American Forces Information Service. Defense Visual Information Center. 1994-. East German guards stand atop the Berlin Wall beside the Brandenburg Gate following the official opening of the gate on December 22nd. 1989-12-23. Retrieved from the Digital Public Library of America, http://catalog.archives.gov/id/6460681. (Accessed July 21, 2018.)
APA citation style
Department of Defense. American Forces Information Service. Defense Visual Information Center. 1994-, (1989-12-23) East German guards stand atop the Berlin Wall beside the Brandenburg Gate following the official opening of the gate on December 22nd. Retrieved from the Digital Public Library of America, http://catalog.archives.gov/id/6460681
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/6460681>.
Note: These citations are programmatically generated and may be incomplete.