1Burrard-Lucas, Will. The Black Leopard: My Quest to Photograph One of Africa's Most Elusive Big Cats. San Francisco: Chronicle Books, 2021.
2Cowan, Angela M. "Eye of the Leopard." National Geographic: Resource Library. Updated September 21, 2011. Accessed: August 30, 2021.
3Elder, Scott. "Amur Leopards." National Geographic Kids. Accessed: August 30, 2021.
4Esbaum, Jill. Explore My World: Snow Leopard. Washington, DC: National Geographic, 2014.
5Haywood, Anne, and Terrell Smith Juth. "Photo Ark: African Leopard." National Geogrphic. Updated March 19, 2018. Accessed: August 30, 2021.
6"Leopard." National Geographic. Accessed: August 30, 2021.
7"Leopard." National Geographic Kids. Accessed: August 30, 2021.
8Tesson, Sylvain. The Art of Patience: Seeking the Snow Leopard in Tibet. New York: Penguin Press, 2021.
9The Editors of Encyclopaedia Britannica. "Leopard." Encyclopaedia Britannica. Updated June 19, 2021. Accessed: August 30, 2021.