A bibliographical rarity – The first manual of geology in romanian language (Cobălcescu, 1859). Geo-Eco-Marina, [S. l.], v. 28, p. 139–146, 2022. DOI: 10.5281/zenodo.7491387. Disponível em: https://journal.geoecomar.ro/geo-eco-marina/article/view/11_2022. Acesso em: 20 jun. 2026.