50 years on, the 1972 Miami Dolphins' undefeated season remains undefeated, Miami Dolphins
Still Perfect: Miami Dolphins to Honor Undefeated 1972 Team at Sunday's Game – NBC 6 South Florida
Larry Csonka on the '72 Dolphins and NFL perfection: 'I guard it jealously'
50 years on, the 1972 Miami Dolphins' undefeated season remains undefeated, Miami Dolphins
Don Shula, NFL's winningest coach, took Dolphins to unbeaten season.
1972 Miami Dolphins' 50-year anniversary: Five interesting facts about the NFL's only perfect season
Pressure Point: '72 Dolphins undefeated, feistier than ever – Five Reasons Sports Network
1972 Miami Dolphins perfect season will stand alone among NFL's unbeatens
1972 Miami Dolphins' 50-year anniversary: Five interesting facts about the NFL's only perfect season