DUNS, Professor. Notes on Stone Arrow-Heads from South America, the Property of A. Craig Christie, F.L.S. Proceedings of the Society of Antiquaries of Scotland, [S. l.], v. 23, p. 109–110, 1889. DOI: 10.9750/PSAS.023.109.110. Disponível em: https://journals.socantscot.org/index.php/psas/article/view/6316. Acesso em: 5 may. 2024.