Ritchie A, Halliday SP, Fernie EC, Macquarrie A, Martin CJM, Wickham-Jones CR, et al. Lecture summaries. PSAS [Internet]. 1987 Nov. 30 [cited 2024 Apr. 26];116:583-92. Available from: https://journals.socantscot.org/index.php/psas/article/view/9288