Oakland Athletics' history (4/10): A's play first-ever game in 1968 - Athletics Nation
The Oakland A's Say They're Leaving for Las Vegas - WSJ
This Day in Braves History: March 27 - Battery Power
Oakland A's home openers from 1968 to today
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Building the A's best 25-man roster from their Oakland era - The Athletic
Playoff flashback, 1972: Oakland A's vs Detroit Tigers - Bless You Boys
Remembering the Philadelphia 'Pathetics', the worst baseball team in history, Baseball
Game #18: A's clubbed by Giants 8-2 - Athletics Nation
On this date, 1968: Catfish Hunter is perfect – Daily Democrat
List of Oakland Athletics seasons - Wikipedia
Today in Oakland A's history (4/13): Oakland A's earn first-ever win in 1968 - Athletics Nation
Oakland Athletics - Wikipedia
A's run winning streak to 12, beating Orioles 3-1 - The San Diego Union-Tribune
A brief history of memorable Red Sox-A's games at Oakland Coliseum