National Football League - 1972 NFL Season Overview
E:60 Perfect Machine an informative look at 1972 Miami Dolphins
NFL - Q: The only undefeated team in NFL history. A: Who are the 1972 Miami Dolphins?
17 facts about 17-0 Super Bowl VII champion Miami Dolphins - Los Angeles Times
Achieving Perfection Story of the 1972 Miami Dolphins Undefeated Season
NFL teams that came closest to going undefeated, joining the 1972 Dolphins as members of the perfect club
1972 Miami Dolphins: The inside story of the only perfect season in NFL history
The 1972 Miami Dolphins still have the NFL's only perfect season - The Washington Post
17 facts about 17-0 Super Bowl VII champion Miami Dolphins - Los Angeles Times