50 years on, the 1972 Miami Dolphins' undefeated season remains undefeated, Miami Dolphins
Photos: Remembering Don Shula, Loss Of A Legend
Eagles remind Larry Csonka of '72 Dolphins, who had perfect season
1972 Dolphins champagne celebration: Do ex-Miami players toast the first loss of the last undefeated NFL team every season?
1972 Miami Dolphins: The inside story of the only perfect season in NFL history
NFL: The Miami Dolphins team of 'misfits' who won the Super Bowl undefeated - BBC Sport
The Perfect Team: Part 25-Fifty Years Later - Miami Dolphins
Super Bowl VIII: Larry Csonka and Dolphins make it back-to-back titles in rout of Vikings – New York Daily News
What the Steelers can learn from other teams that flirted with perfection
1972 Miami Dolphins — Greg Meakin