1972 Miami Dolphins: The inside story of the only perfect season in NFL history
NFL teams that came closest to going undefeated, joining the 1972 Dolphins as members of the perfect club
NFL - Q: The only undefeated team in NFL history. A: Who are the 1972 Miami Dolphins?
1972 Miami Dolphins season - Wikipedia
ONLY UNDEFEATED NFL TEAM EVER 1972 MIAMI DOLPHINS 8X10 PHOTO FOOTBALL
Why do the 1972 Miami Dolphins feel that they should be the only NFL team to finish undefeated? If a different team went undefeated, why can't the 72 Dolphins pass the torch?
1972 Miami Dolphins: The inside story of the only perfect season in NFL history
The 1972 Dolphins remain the NFL's lone undefeated team
Don Shula: Breaking News, Rumors & Highlights
50 years on, the 1972 Miami Dolphins' undefeated season remains undefeated, Miami Dolphins