Some Prehistoric Relics from Lewis. Proceedings of the Society of Antiquaries of Scotland, [S. l.], v. 68, p. 428–432, 1934. DOI: 10.9750/PSAS.068.428.432. Disponível em: https://soas-test.journals.ed.ac.uk/index.php/psas/article/view/7921. Acesso em: 27 oct. 2025.