Rocky Marciano: "The Brockton Blockbuster" by John Jarrett. May 15 2018.
ibroresearch.com
"All Time Rankings". International Boxing Research Organization. March 2005. Archived from the original on December 21, 2005. Retrieved January 18, 2007.
"All Time Rankings". International Boxing Research Organization. March 2005. Archived from the original on December 21, 2005. Retrieved January 18, 2007.