DR. CATHERINE B. HUGHES. Sustainable Development and Environmental Conservation: Challenges and Opportunities in the 21st Century. ROSSIISKAYA ISTORIYA, [S. l.], n. 1, p. 494–499, 2026. Disponível em: https://rossiiskaya.com/index.php/ri/article/view/197. Acesso em: 17 jun. 2026.