The plaque honoring the 47 crew members killed in the No. 2 turret explosion aboard the battleship USS IOWA (BB-61) is unveiled during a commemorative ceremony. Those crew members who served with distinction during the tragedy, which occurred on April 19, 1989, during routine gunnery exercises, will also be presented with awards

Chicago citation style
Department of Defense. American Forces Information Service. Defense Visual Information Center. 1994. The plaque honoring the 47 crew members killed in the No. 2 turret explosion aboard the battleship USS IOWA (BB-61) is unveiled during a commemorative ceremony. Those crew members who served with distinction during the tragedy, which occurred on April 19, 1989, during routine gunnery exercises, will also be presented with awards. 1990-01-04. Retrieved from the Digital Public Library of America, http://catalog.archives.gov/id/6455436. (Accessed November 21, 2018.)
APA citation style
Department of Defense. American Forces Information Service. Defense Visual Information Center. 1994, (1990-01-04) The plaque honoring the 47 crew members killed in the No. 2 turret explosion aboard the battleship USS IOWA (BB-61) is unveiled during a commemorative ceremony. Those crew members who served with distinction during the tragedy, which occurred on April 19, 1989, during routine gunnery exercises, will also be presented with awards. Retrieved from the Digital Public Library of America, http://catalog.archives.gov/id/6455436
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/6455436>.
Note: These citations are programmatically generated and may be incomplete.