A harbor tug pulls the guided missile destroyer USS HAYLER (DD-997) away from the pier during Unitas XXXI, an annual, joint exercise between the U.S. Navy and the naval forces of nine South American countries. (Exact date shot unknown)

Chicago citation style
Department of Defense. American Forces Information Service. Defense Visual Information Center. 1994-. A harbor tug pulls the guided missile destroyer USS HAYLER (DD-997) away from the pier during Unitas XXXI, an annual, joint exercise between the U.S. Navy and the naval forces of nine South American countries. (Exact date shot unknown). 1990-01-01. Retrieved from the Digital Public Library of America, http://catalog.archives.gov/id/6468160. (Accessed July 21, 2018.)
APA citation style
Department of Defense. American Forces Information Service. Defense Visual Information Center. 1994-, (1990-01-01) A harbor tug pulls the guided missile destroyer USS HAYLER (DD-997) away from the pier during Unitas XXXI, an annual, joint exercise between the U.S. Navy and the naval forces of nine South American countries. (Exact date shot unknown). Retrieved from the Digital Public Library of America, http://catalog.archives.gov/id/6468160
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/6468160>.
Note: These citations are programmatically generated and may be incomplete.