John Madden Football gameplay (PC Game, 1988)
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Madden NFL 19: The weird story behind the first 'John Madden Football' game
From the pages of the past, ads of yesteryear – John Madden Football
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John Madden Football - Video Game 1988 IBM PC XT at for sale online
How John Madden Became the Face of a Video Game Empire - The New York Times
John Madden Football (PC, 1988) - Video Game Years History
Capturing Football's Snaps, Crackles and Pops in Madden NFL - The New York Times
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John Madden's Heroes of Football: Madden, John: 9780525476986: : Books
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