- Larry McMurtry. Lonesome Dove. New York: Simon and Schuster, 1985.
- Carolyn Merchant. American Environmental History: An Introduction. New York: Columbia University Press, 2007.
- Michael Carlson. "Larry McMurtry obituary." The Guardian. 31 March 2021. Accessed 20 November 2024. <https://www.theguardian.com/books/2021/mar/31/larry-mcmurtry-obituary>.
- Joshua J. Mark. "Red Cloud." World History Encyclopedia. 15 February 2024. Accessed 30 November 2024. <https://www.worldhistory.org/Red_Cloud/>.
- J. Weston Phippen. "‘Kill Every Buffalo You Can! Every Buffalo Dead Is an Indian Gone’." The Atlantic. 13 May 2016. Accessed 3 December 2024. <https://www.theatlantic.com/national/archive/2016/05/the-buffalo-killers/482349/>.
- "Near Extinction of the Great Plains Bison 1820–1900." Environment & Society Portal. Accessed 3 December 2024. <https://www.environmentandsociety.org/tools/keywords/near-extinction-great-plains-bison-1820-1900>.
- Rachel Monroe. "True West: How Larry McMurtry defined and undermined the idea of Texas." The New Yorker. 18 September 2023. Accessed 9 December 2024. <https://www.newyorker.com/magazine/2023/09/25/larry-mcmurtry-a-life-tracy-daugherty-book-review>.
- "Scalping: rite of warfare." Britannica. Last Updated 2 December 2024. Accessed 9 December 2024. <https://www.britannica.com/topic/scalping>.
- Mervyn Rothstein. "A Texan Who Likes to Deflate The Legends of the Golden West." The New York Times. 1 November 1988. Accessed 11 December 2024. <https://www.nytimes.com/1988/11/01/books/a-texan-who-likes-to-deflate-the-legends-of-the-golden-west.html>.