Gifford, Terry. “Issues of Ownership and Access in the Work of John Muir, John Buchan and Andrew Greig”. Revista Leitura 2, no. 36 (março 16, 2019): 23–34. Acesso em fevereiro 2, 2026. https://ufal.emnuvens.com.br/revistaleitura/article/view/7332.