The Mod Style of the Swingin' A's - Baseball Egg
1980 Oakland Starters—A's for Effort
Oakland Athletics game coverage statistics and features - San Francisco Chronicle
100 Things A's Fans Should Know & Do Before They Die by Susan Slusser, Billy Beane - Ebook
Dick Green – Society for American Baseball Research
The A's are bringing back Harvey the Rabbit, one of the wackiest ballpark quirks of all-time
Retro Recap (1972): Joe Rudi, Catfish Hunter carry Oakland A's to Game 2 victory - Athletics Nation
Oakland Athletics - Wikipedia
My Favorite Weird Baseball Promotions
A baseball card mystery: Ken Holtzman's 1974 Topps card