Coles, F. R. (1903). Notices of the following:: (1) the Camp at Montgoldrum and other Antiquities in Kincardineshire; (2) a Stone Circle called The Harestones in Peeblesshire; (3) a Cairn and Standing Stones at Old Liston, and other Standing Stones in Midlothian and Fife; (4) of some hitherto undescribed Cup- and Ring-marked Stones; and (5) recent Discoveries of Urns. Proceedings of the Society of Antiquaries of Scotland, 37, 193–232. https://doi.org/10.9750/PSAS.037.193.232