Contributions to physical geography: From the Edinburgh Journal of Science, No. III. South African Quarterly Journal, Cape Colony, v. 1, n. 3, p. 241–248, 1830. DOI: 10.21504/saqj.13.2647. Disponível em: https://journal.ru.ac.za/index.php/saqj/article/view/2647. Acesso em: 20 nov. 2025.