BLACK, George F. Notice of a Peculiar Type of Implement found in Ancient Graves in Peru. Proceedings of the Society of Antiquaries of Scotland, [S. l.], v. 23, p. 164–166, 1889. DOI: 10.9750/PSAS.023.164.166. Disponível em: https://journals.socantscot.org/index.php/psas/article/view/6325. Acesso em: 29 apr. 2024.