KENWORTHY, J B. A mace-head from Orkney. Proceedings of the Society of Antiquaries of Scotland, [S. l.], v. 108, p. 366–367, 1979. DOI: 10.9750/PSAS.108.366.367. Disponível em: https://journals.socantscot.org/index.php/psas/article/view/8979. Acesso em: 1 may. 2024.