Notes on the True Date of the October Festival of St Regulus of St Andrews, as bearing on the suggested Identification of St Regulus and the Irish St Riaghail

Notes on the True Date of the October Festival of St Regulus of St Andrews, as bearing on the suggested Identification of St Regulus and the Irish St Riaghail. (1893). Proceedings of the Society of Antiquaries of Scotland, 27, 247-254. https://doi.org/10.9750/PSAS.027.247.254