Madden NFL 99 - Wikipedia
Download Madden NFL 99 (Windows) - My Abandonware
Madden NFL 99 Box Shot for Nintendo 64 - GameFAQs
The Sports Gaming Network - Football : Madden 99 (PSX) Review
Download Madden NFL 99 (Windows) - My Abandonware
Madden NFL 99 Images - LaunchBox Games Database
Madden NFL 99 for the PC : Electronic Arts : Free Download, Borrow, and Streaming : Internet Archive
Madden NFL 99 (1998) - MobyGames
Madden NFL 2000 Photoblog
Madden NFL 2005 Photoblog
Madden NFL 99. Slightly behind its peers, EA's…, by Zach Bernard, Rumpus Room