National Football League Record Manual-NFL 1965-226 pages-stats
Official Site of the National Football League
American football - Wikipedia
Rookie's guide to the NFL: All you need to know about American
A two-minute-drill look at the NFL's 100 year history
Team Histories NFL Football Operations
The Official National Football League book by National Football
What were the original NFL teams?
Vintage 1995 Record & Fact Book The National Football League
NFL Championships History: Has a team ever switched from NFC to
College football - Wikipedia
Dallas Cowboys - 10 Fun Facts (NFL, 1960, Arlington, Texas, Super