Texas State Highway Spur 421 (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "Texas State Highway Spur 421" in English language version.

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6,180^th place

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1,630^th place

expressnews.com

Davila, Vianna (November 20, 2013). "City officials say no to TxDOT turnback program". San Antonio Express-News. Retrieved August 10, 2020 – via MySA.com.

Transportation Planning and Programming Division (n.d.). "State Highway Spur No. 421". Highway Designation Files. Texas Department of Transportation. Retrieved January 2, 2011.
Transportation Planning and Programming Division (2018). Texas County Mapbook (PDF) (Map) (2018 ed.). 1:72,224. Texas Department of Transportation. p. 1868. Retrieved December 14, 2022.