Laing, David. “Edinburgh in Early Times: With Illustrations: (The Prefatory Notices Continued. The Early Views, Both North and South, of the City.)”. Proceedings of the Society of Antiquaries of Scotland 9 (November 30, 1872): 223. Accessed November 22, 2024. https://journals.socantscot.org/index.php/psas/article/view/5473.