A. Jervise, “Notices descriptive of the localities of certain Sculptured Stone Monuments in Forfarshire, viz., - Benvie, and Invergowrie; Strathmartin, and Balutheran; Monifieth; Cross of Camus, and Arbirlot. Part III”, PSAS, vol. 2, pp. 442–452, Nov. 1859.