ANDERSON, Joseph. Notes on Three Buttons of Jet or Cannel-coal found in a Cist at Old Windymains, Keith-Marischal, East Lothian. Proceedings of the Society of Antiquaries of Scotland, [S. l.], v. 33, p. 68–69, 1899. DOI: 10.9750/PSAS.033.68.69. Disponível em: https://journals.socantscot.org/index.php/psas/article/view/6729. Acesso em: 24 apr. 2024.