Pedro Guerrero – Society for American Baseball Research
Texas Rangers, History & Notable Players
What MLB players were inducted in the Baseball Hall of Fame in the '50s and '60s? - Quora
Infobase Publishing - Sammy Sosa
Incredible Baseball Stats: The Coolest, Strangest Stats and Facts in Baseball History: Reavy, Kevin, Spaeder, Ryan, Boggs, Wade: 9781613218945: : Books
The Hall of Fame Vote - A Look at How the BBRT Fan Vote Compared to the BBWAA Balloting - Baseball Roundtable
soxnerd, Mentions, soxnerd
Sammy Sosa's 66 Home Run Season by Baseball Almanac
1998 Major League Baseball home run record chase - Wikipedia