COE, D. E. Cartographic Considerations for Ethical Rockhounding. Cartographic Perspectives, [S. l.], n. 105, p. 63–66, 2025. DOI: 10.14714/CP105.1967. Disponível em: https://cartographicperspectives.org/index.php/journal/article/view/1967. Acesso em: 21 may. 2026.