50 years on, the 1972 Miami Dolphins' undefeated season remains undefeated, Miami Dolphins
Regular Season Game 3 - Chiefs at Ravens (9-28-20) by Kansas City Chiefs - Issuu
Head On': Legendary Dolphin Csonka recounts losses amid gridiron glory
Perfect Memories: A '72 Dolphins 50th anniversary celebration
When Browns came just short of ending Miami Dolphins' undefeated 1972 season: Browns Flashback
Do 1972 Miami Dolphins Toast First Losses of Undefeated Teams?
Seventeen and Oh' Review: A Perfect Season for Dolphins - WSJ
Phinsider Hump Day Flashback and Live Thread - The Phinsider
Don Shula, Taylor Blitz Times
Notre Dame Fighting Irish football - Wikipedia
Browns: What stood out from all-22 of loss to Dolphins?
Five questions with former Dolphins great Paul Warfield
This is what happened when Paul Brown's Bengals played Cleveland for the first time: Browns Flashback