| Barghoorn, Linda. Xiuhtezcatl Martinez: Protecting the Environment and Indigenous Rights. New York, New York: Crabtree Publishing Company. 2017. | | 2017 | | |
| Earth Guardians contributors. "Xiuhtezcatl Martinez: Earth Guardians Youth Director, Xiuhtezcatl Martinez". In: Earth Guardians website (host URL: https://www.earthguardians.org/) at source URL: https://www.earthguardians.org/xiuhtezcatl. 2019. | | 2019 | Current entry on Xiuhtezcatl Martinez in the Earth Guardians website (viewed August 2, 2019) | View |
| Martinez, Xiuhtezcatl. Xiuhtezcatl. URL: https://xiuhtezcatl.com/. 2019. | | 2019 | Xiuhtezcatl Martinez' website (viewed August 2, 2019) | View |
| Parker, Laura. "Fighting for Their Future: as Climate Change Creates Chaos Worldwide, Young People Are Taking Action and Demanding More from Their Elders". National Geographic, April 2020. 2020. | 73 | 2020 | Biographical sketch with color photographic portrait of Xiuhtezcatl Martinez, by Victoria Will. | Host issue is "Earth Day 50th Anniversary" special issue. | |
| Wikipedia contributors. "Xiuhtezcatl Martinez". In: Wikipedia, the Free Encyclopedia (host URL: https://en.wikipedia.org/wiki/Xiuhtezcatl_Martinez. 2016. | | 2016 | Current entry on Xiuhtezcatl Martinez in Wikipedia (viewed July 27, 2019); page created June 25, 2016, revised and updated irregularly. | View |