1972 Miami Dolphins' 50-year anniversary: Five interesting facts about the NFL's only perfect season
1972 Dolphins champagne celebration: Do ex-Miami players toast the first loss of the last undefeated NFL team every season?
50 years later, '72 Dolphins remain unmatched in perfection
Fifty years ago, the Browns nearly ended 1972 Dolphins' perfect season – News-Herald
Shop Miami Dolphins 1972 Perfect Season 50th Anniversary Exclusive Limited Edition Football at Nikco Sports
NFL America's Game: 1972 DOLPHINS (Super Bowl VII) : Larry Csonka, Don Shula, Manny Fernandez: Movies & TV
50 years later, '72 Dolphins remain unmatched in perfection
Miami Dolphins - Wikipedia
Review: ESPN The Perfect Machine, a look back at Dolphins perfection
Dolphins Celebrate Their 1972 Season by Winning First Game - The New York Times
NFL teams that came closest to going undefeated, joining the 1972 Dolphins as members of the perfect club