อ้างอิง ของ รัฐแอริโซนา

  1. ↑ "Arizona – Definition and More from the Free Merriam-Webster Dictionary". Merriam-webster.com. April 25, 2007. สืบค้นเมื่อ December 28, 2011.
  2. ↑ "2010 Census State Area Measurements and Internal Point Coordinates". U.S. Census Bureau. Retrieved February 14, 2012.
  3. ↑ "Median Annual Household Income". The Henry J. Kaiser Family Foundation. สืบค้นเมื่อ December 9, 2016.
  4. ↑ "Frisco". NGS data sheet. U.S. National Geodetic Survey. สืบค้นเมื่อ October 20, 2011.
  5. 1 2 "Elevations and Distances in the United States". United States Geological Survey. 2001. Archived from the original on October 15, 2011. สืบค้นเมื่อ December 28, 2011.
  6. 1 2 Elevation adjusted to North American Vertical Datum of 1988.

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