The Honorable Donald H. Rumsfeld, U.S. Secretary of Defense, (left), escorts General Lord George Robertson (right), NATO Secretary, through an honor cordon at the Pentagon, Washington, D.C., on Jun 20, 2001. (DoD photo by Helene C. Stikkel) (Released)

Chicago citation style
Department of Defense. American Forces Information Service. Defense Visual Information Center. 1994-. The Honorable Donald H. Rumsfeld, U.S. Secretary of Defense, (left), escorts General Lord George Robertson (right), NATO Secretary, through an honor cordon at the Pentagon, Washington, D.C., on Jun 20, 2001. (DoD photo by Helene C. Stikkel) (Released). 2001-06-20. Retrieved from the Digital Public Library of America, http://catalog.archives.gov/id/6682155. (Accessed June 25, 2018.)
APA citation style
Department of Defense. American Forces Information Service. Defense Visual Information Center. 1994-, (2001-06-20) The Honorable Donald H. Rumsfeld, U.S. Secretary of Defense, (left), escorts General Lord George Robertson (right), NATO Secretary, through an honor cordon at the Pentagon, Washington, D.C., on Jun 20, 2001. (DoD photo by Helene C. Stikkel) (Released). Retrieved from the Digital Public Library of America, http://catalog.archives.gov/id/6682155
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/6682155>.
Note: These citations are programmatically generated and may be incomplete.