NFL - A perfect season doesn't happen overnight. This is
Undefeated NFL teams: 1972 Dolphins pop champagne as Eagles' quest
1972 Perfect Season - Miami Dolphins
Don Shula, winningest coach in pro football history, dies at 90
Historical Perspective 5 - Perfection in 1972 - The Phinsider
Perfection: The Inside Story of the 1972 Miami Dolphins' Perfect
Miami Dolphins Honor 1972 Undefeated Season - The Phinsider
FILE - Former Miami Dolphins 1972 players Bob Griese (12) and Earl
The Path To Perfection – 7 Part Documentary on the 1972 Perfect
The Greatest Football Team
1972 Dolphins remember their deceased teammates and coaches