The NFL: 100 Years of football - Los Angeles Times
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Football Zebras - Analysis and commentary of the NFL's officials and the calls they make
The NFL: 100 Years of football - Los Angeles Times
NFL100: When the referee had to rule on things other than football – Football Zebras
N.F.L. Deal on Use of Images Divides Retirees - The New York Times
NFL100: When the referee had to rule on things other than football – Football Zebras
Football Zebras - Analysis and commentary of the NFL's officials and the calls they make
NFL100: When the referee had to rule on things other than football – Football Zebras