LAIDER, Percy W. Notice of some rudely chipped Implements of Indurated Sandstone from South Africa, presented to the Museum. Proceedings of the Society of Antiquaries of Scotland, [S. l.], v. 46, p. 443–445, 1912. DOI: 10.9750/PSAS.046.443.445. Disponível em: https://journals.socantscot.org/index.php/psas/article/view/7269. Acesso em: 1 may. 2024.