Amazon.com: Undefeated: Inside the 1972 Miami Dolphins' Perfect Season eBook : Freeman, Mike: Books
Miami Dolphins Honor 1972 Undefeated Season - The Phinsider
50 years on, the 1972 Miami Dolphins' undefeated season remains undefeated, Miami Dolphins
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Dolphins offering throwback '1972' concession prices as they celebrate perfect-season team Sunday vs. Steelers