Hughes, Michael. “Tramps, Mountains and Unicorns: The Glacier Park Hike of Vachel Lindsay and Stephen Graham”. Journal for the Study of Religion, Nature and Culture 8, no. 3 (December 16, 2014): 267–286. Accessed July 16, 2024. https://journal.equinoxpub.com/JSRNC/article/view/4508.