50 years later, '72 Dolphins remain unmatched in perfection
1972 Miami Dolphins perfect season will stand alone among NFL's unbeatens
Which NFL team is undefeated in the league's history?
Larry Csonka: Still Perfection, 50 Years Later - WSJ
ABSOLUTE PERFECTION: THE 1972 MIAMI DOLPHINS – SUPERBOWL VII
1972 Dolphins are a national treasure; celebrate them
Shop Bob Griese Miami Dolphins Autographed 1972 Perfect Season 50th Anniversary Exclusive Limited Edition Football at Nikco Sports
UNDEFEATED: Freeman, Mike: 9780062009838: : Books
Mercury Morris on the 1972 Miami Dolphins' perfect season
1972 Miami Dolphins: The inside story of the only perfect season in NFL history