50 Greatest Vikings (2010) In connection with the team's 50th anniversary, the Vikings announced a group of 50 top players on December 19, 2010.50 Greatest Vikings , vikings.com (accessed August 2, 2014).
50 Greatest Vikings (2010) In connection with the team's 50th anniversary, the Vikings announced a group of 50 top players on December 19 2010.50 Great,est Vikings  vikings.co.m, (accessed August 2, 2014)