Miami Dolphins complete perfect NFL season.
Undefeated: Inside the 1972 Miami Dolphins' Perfect Season by Mike Freeman, Paperback
NFL on FOX - Will we ever see another team match the 1972 Miami Dolphins with a perfect season?
1972 Miami Dolphins: The inside story of the only perfect season in NFL history
Miami Dolphins celebrates 50 years of the only perfect team in NFL history with several of its legends
Miami Dolphins win Super Bowl VII to cap NFL's only perfect season
NFL teams that came closest to going undefeated, joining the 1972 Dolphins as members of the perfect club
50 years on, the 1972 Miami Dolphins' undefeated season remains undefeated, Miami Dolphins
1972 Miami Dolphins: The inside story of the only perfect season in NFL history
NFL - There's only one team to ever do it. #72Dolphins 50 years later, can we see another perfect season? Miami Dolphins