The No. 1 and No. 2 Mark 7 16-inch/50-cal. gun turrets of the battleship USS IOWA (BB-61) are trained to port for a main battery firing exercise

Chicago citation style
Department of Defense. American Forces Information Service. Defense Visual Information Center. 1994-. The No. 1 and No. 2 Mark 7 16-inch/50-cal. gun turrets of the battleship USS IOWA (BB-61) are trained to port for a main battery firing exercise. 1986-12-01. Retrieved from the Digital Public Library of America, http://catalog.archives.gov/id/6422283. (Accessed July 20, 2018.)
APA citation style
Department of Defense. American Forces Information Service. Defense Visual Information Center. 1994-, (1986-12-01) The No. 1 and No. 2 Mark 7 16-inch/50-cal. gun turrets of the battleship USS IOWA (BB-61) are trained to port for a main battery firing exercise. Retrieved from the Digital Public Library of America, http://catalog.archives.gov/id/6422283
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/6422283>.
Note: These citations are programmatically generated and may be incomplete.