U.S. Route 181 (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "U.S. Route 181" in English language version.

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caller.com

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fhwa.dot.gov

state.tx.us

dot.state.tx.us

  • Transportation Planning and Programming Division (n.d.). "U.S. Highway No. 181". Highway Designation Files. Texas Department of Transportation. Retrieved January 9, 2011.
  • Transportation Planning and Programming Division (n.d.). "State Highway Spur No. 122". Highway Designation Files. Texas Department of Transportation. Retrieved 2013-08-07.
  • Transportation Planning and Programming Division (n.d.). "State Highway Loop No. 516". Highway Designation Files. Texas Department of Transportation. Retrieved January 9, 2011.
  • Transportation Planning and Programming Division (n.d.). "Business U.S. Highway No. 181-J". Highway Designation Files. Texas Department of Transportation. Retrieved January 9, 2011.
  • Transportation Planning and Programming Division (n.d.). "State Highway Spur No. 259". Highway Designation Files. Texas Department of Transportation. Retrieved January 9, 2011.
  • Transportation Planning and Programming Division (n.d.). "Business U.S. Highway No. 181-G". Highway Designation Files. Texas Department of Transportation. Retrieved January 9, 2011.
  • Transportation Planning and Programming Division (n.d.). "Business U.S. Highway No. 181-F". Highway Designation Files. Texas Department of Transportation. Retrieved January 9, 2011.
  • Transportation Planning and Programming Division (n.d.). "State Highway Spur No. 258". Highway Designation Files. Texas Department of Transportation. Retrieved January 9, 2011.
  • Transportation Planning and Programming Division (n.d.). "Business U.S. Highway No. 181-E". Highway Designation Files. Texas Department of Transportation. Retrieved January 9, 2011.
  • Transportation Planning and Programming Division (n.d.). "State Highway No. 80". Highway Designation Files. Texas Department of Transportation. Retrieved January 9, 2011.
  • Transportation Planning and Programming Division (n.d.). "Business U.S. Highway No. 181-D". Highway Designation Files. Texas Department of Transportation. Retrieved January 9, 2011.
  • Transportation Planning and Programming Division (n.d.). "Farm to Market Road No. 1144". Highway Designation Files. Texas Department of Transportation. Retrieved January 9, 2011.
  • Transportation Planning and Programming Division (n.d.). "State Highway Loop No. 181". Highway Designation Files. Texas Department of Transportation. Retrieved July 6, 2014.
  • Transportation Planning and Programming Division (2018). Texas County Mapbook (PDF) (Map) (2018 ed.). 1:72,224. Texas Department of Transportation. p. 1942. Retrieved July 14, 2021.

txdot.gov