text: Source Notes
  7-93 Appleman, Roy E., James M. Burns, Russell A. Gugeler, and John Stevens. The War in the
  Pacific, Okinawa: The Last Battle. Washington, DC: Historical Division, Department of the
  Army, 1048. Available online at https://history.army.mil/html/books/005/5-11-
  1/CMH_Pub_5-11-1.pdf.