June 4, 2009: Randy Johnson wins his 300th career game – Society for American Baseball Research
Randy Johnson retires after 22 seasons - The San Diego Union-Tribune
Last three to 300 The Spokesman-Review
MLB History: Remembering Ichiro, Randy Johnson and all things 2001
Randy Johnson announces his retirement – The Mercury News
Johnson, Randy Baseball Hall of Fame
300 Win Club: Gaining Another Member Will Be Tough but Not Impossible
Though he'll enter Hall of Fame as a D-Back, Randy Johnson cherishes time with Mariners
Randy Johnson Records His 300th Career Victory The New York, 45% OFF