CURSITER, James W. Note of a Carved Stone Ball recently found in Orkney. (A Cast of the Ball was exhibited.). Proceedings of the Society of Antiquaries of Scotland, [S. l.], v. 16, p. 295–296, 1882. DOI: 10.9750/PSAS.016.295.296. Disponível em: https://journals.socantscot.org/index.php/psas/article/view/6019. Acesso em: 6 may. 2024.