NFL Football Teams - Official Sites of all 32 NFL Teams
Used Book in Good Condition
The Official NFL Record and Fact Book 2011 (OFFICIAL NATIONAL FOOTBALL LEAGUE RECORD AND FACT BOOK)
What were the original NFL teams?
The NFL: 100 Years of football - Los Angeles Times
Team Histories NFL Football Operations
National Football League (NFL), History, Teams, & Facts
National Football League (NFL), History, Teams, & Facts
History of the NFL: From the 1890s to the Present - TheStreet
NFL Football Teams - Official Sites of all 32 NFL Teams
Used Book in Good Condition
NFL Record and Fact Book 2009 (OFFICIAL NATIONAL FOOTBALL LEAGUE RECORD AND FACT BOOK)
10 Oldest Teams in the NFL