Cree, J. E. (1928). Notices of a Bronze Axe and a Fragment of a Tanged Dagger found near Gullane, East Lothian, and of a Food-vessel from Cadder, Lanarkshire. Proceedings of the Society of Antiquaries of Scotland, 62, 229–231. https://doi.org/10.9750/PSAS.062.229.231