EARWOOD, Caroline; O'NEIL, Marion. Two Early Historic bog butter containers. Proceedings of the Society of Antiquaries of Scotland, [S. l.], v. 121, p. 231–240, 1992. DOI: 10.9750/PSAS.121.231.240. Disponível em: https://journals.socantscot.org/index.php/psas/article/view/9410. Acesso em: 27 apr. 2024.