Madden NFL '94 - Wikipedia
John Madden Football II - Wikipedia
Madden NFL Covers Through the Years, Gallery, History, Buying
List of Madden titles, Madden Wiki
Category:Games, Madden Wiki
John Madden Football (Genesis, 1990) - Sega Does
Madden NFL 19: The weird story behind the first 'John Madden
John Madden Football (1994) - MobyGames
Madden NFL 25 - Codex Gamicus - Humanity's collective gaming