1.
Haverfield FJ, MacDonald G. Sir Robert Sibbald’s ’Directions for his honoured friend Mr Llwyd how to Trace and Remarke the Vestiges of the Roman Wall betwixt Forth and Clyde.’. PSAS [Internet]. 1910 Nov. 30 [cited 2024 Nov. 22];44:319-27. Available from: https://journals.socantscot.org/index.php/psas/article/view/7189