LAING, David. Mrs Erskine, Lady Grange, in the Island of St Kilda. Proceedings of the Society of Antiquaries of Scotland, [S. l.], v. 10, p. 722–730, 1875. DOI: 10.9750/PSAS.010.722.730. Disponível em: https://journals.socantscot.org/index.php/psas/article/view/5705. Acesso em: 26 apr. 2024.