The Gridiron Uniform Database
Time for a Change: Historical Perspective on the Washington Redskins Name and Logo Controversy – Active History
Minnesota Vikings, American Football Wiki
Washington Commanders, American Football Wiki
1972 Formula One season - Wikipedia
1972 Miami Dolphins season: Miami Dolphins, Perfect season, 1972–73 NFL playoffs, Don Shula, Miami Orange Bowl, Super Bowl VII, Super Bowl : Miller, Frederic P., Vandome, Agnes F., McBrewster, John: : Libros
Coaching History — Hoosier Huddle