(2004). Ty Cobb: a Biography. Greenwood Publishing Group. p. 18. ISBN 0-313-32869-2. Career statistics and player information from MLB, or ESPN, or Baseball...
(2004). Ty Cobb: A Biography. Greenwood Publishing Group. p. 136. ISBN 0-313-32869-2. Retrieved January 12, 2009. "Career Leaders for Runs (Progressive)"...
(2004). Ty Cobb: A Biography. Greenwood Publishing Group. p. 30. ISBN 0313328692. "1907 American League Batting Leaders". Baseball-Reference.com. Retrieved...