LEDINGHAM, John. Notice of the Discovery of Cists on the Farm of Slap, near Turriff, Aberdeenshire. Proceedings of the Society of Antiquaries of Scotland, [S. l.], v. 10, p. 739–740, 1875. DOI: 10.9750/PSAS.010.739.740. Disponível em: https://journals.socantscot.org/index.php/psas/article/view/5709. Acesso em: 25 apr. 2024.