Kansas, Natural Heritage Inventory (January 9, 2014). "Rare Vertebrates Kansas"(PDF). Archived from the original(PDF) on May 10, 2022. Retrieved October 19, 2022.
Kansas, Natural Heritage Inventory (January 9, 2014). "Rare Vertebrates of Kansas"(PDF). Archived from the original(PDF) on May 10, 2022. Retrieved October 19, 2022.
geokansas.ku.edu
"Physiographic Regions". Kansas Geological Survey (KGS) at University of Kansas (KU). Archived from the original on October 6, 2021.
"Kansas". National Park Service. Archived from the original on December 17, 2006. Retrieved July 15, 2008.
rcc-acis.org
threadex.rcc-acis.org
1981−2010 normals, extremes 1887−present. Official records for Topeka kept at the Weather Bureau Office from June 1887 to July 1946, and at Philip Billard Municipal Airport since August 1946. For more information, see Threadex
"Kansas". National Park Service. Archived from the original on December 17, 2006. Retrieved July 15, 2008.
Kansas, Natural Heritage Inventory (January 9, 2014). "Rare Vertebrates Kansas"(PDF). Archived from the original(PDF) on May 10, 2022. Retrieved October 19, 2022.
Kansas, Natural Heritage Inventory (January 9, 2014). "Rare Vertebrates of Kansas"(PDF). Archived from the original(PDF) on May 10, 2022. Retrieved October 19, 2022.
