GRAHAM-SMITH, G S. On the Method employed in using the So-called ’Otter or Beaver Traps.’. Proceedings of the Society of Antiquaries of Scotland, [S. l.], v. 57, p. 48–54, 1923. DOI: 10.9750/PSAS.057.48.54. Disponível em: https://journals.socantscot.org/index.php/psas/article/view/7569. Acesso em: 24 apr. 2024.