GOW, James MacKintosh. Notice of Cup-marked Stones and Curing Well on the Estate of Garth, Fortingall, Perthshire. With Drawings. Proceedings of the Society of Antiquaries of Scotland, [S. l.], v. 20, p. 41–47, 1886. DOI: 10.9750/PSAS.020.41.47. Disponível em: https://journals.socantscot.org/index.php/psas/article/view/6178. Acesso em: 7 may. 2024.