Perfection: The Inside Story of the 1972 Miami Dolphins Perfect Season
1972 Miami Dolphins' 50-year anniversary: Five interesting facts about the NFL's only perfect season
1972 Miami Dolphins: The inside story of the only perfect season in NFL history
People are only just realizing Miami Dolphins weren't the first NFL team to go through season undefeated
Top 10 Miami Dolphins Players of All Time - Sports Illustrated
1972 Miami Dolphins will remain NFL's only unbeaten team after Alex Smith does in 11-0 Steelers
50 years later, '72 Dolphins remain unmatched in perfection
Current Miami Dolphins hold undefeated 1972 team in reverence
1972 Miami Dolphins RB Mercury Morris: Fans banking on tanking are 'out of their minds'
Undefeated: Inside the 1972 Miami Dolphins' Perfect Season eBook : Freeman, Mike: Books
1972 Miami Dolphins season - Wikipedia
A look at the 1972 Dolphins roster, 50 years later
Miami Dolphins the only NFL team in history with perfect record
Five Reasons the 1972 Miami Dolphins Will Forever Be the Only Undefeated NFL Team