NavSource Online - Facts and annotated images. - http://www.navsource.org/archives/01/37a.htm
Great White Fleet - Ship history, specifications, and images. - http://www.greatwhitefleet.org/oklahoma/01/history.html
Naval Historical Center - BB-37 history and annotated images. - http://www.history.navy.mil/photos/sh-usn/usnsh-o/bb37.htm
U.S. Navy Battleships - USS Oklahoma (BB 37) facts, history, and images. - http://www.chinfo.navy.mil/navpalib/ships/battleships/oklahoma/bb37-okla.html