STEWART, Ian. Notes: (6) A Parcel of Thirteenth and Fourteenth-Century Sterlings, found near Biggar. Proceedings of the Society of Antiquaries of Scotland, [S. l.], v. 95, p. 309–310, 1964. DOI: 10.9750/PSAS.095.309.310. Disponível em: https://journals.socantscot.org/index.php/psas/article/view/8646. Acesso em: 4 may. 2024.