1971 USAC Championship Car season (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "1971 USAC Championship Car season" in English language version.

refsWebsite

Global rank English rank

1speedsport.com

low place

low place

7^th place

7^th place

nytimes.com

Braddock, Bill (November 15, 1970). "$300,000 Marlboro Auto Slate Hits Paved Oval Trail in 1971". The New York Times. Retrieved August 15, 2019.

speedsport.com

Waltz, Keith. "Sweeping Changes For USAC After 1970 Season". Speed Sport. Retrieved August 15, 2019.