1972 Miami Dolphins season - Wikipedia
Memories of AFC title game loss to undefeated 1972 Dolphins still hard to digest for some Steelers
Dolphins vs. Broncos: What records did Miami break in blowout win?
1972 Miami Dolphins: The inside story of the only perfect season in NFL history
Shula, Dolphins made Miami a sports town 50 years ago, Etvarsity
50th anniversary may be 'last time' 17-0 Miami Dolphins to reunite
2007 Miami Dolphins season - Wikipedia
Memories of AFC title game loss to undefeated 1972 Dolphins still hard to digest for some Steelers
1972 Miami Dolphins – The Perfect Season 50th Anniversary
50 years on, the 1972 Miami Dolphins' undefeated season remains undefeated, Miami Dolphins