Anderson J. Notes on a Deposit of Flints worked to a leaf-shape, found at Bulwark, Old Deer, Aberdeenshire; exhibited by Alexander Gray, New Deer. PSAS [Internet]. 1896 Nov. 30 [cited 2024 Apr. 26];30:346-51. Available from: https://journals.socantscot.org/index.php/psas/article/view/6633