[1]
Piggott, S. and Piggott, C.M. 1960. Excavation at Braidwood Fort, Midlothian and Craig’s Quarry, Dirleton, East Lothian. Proceedings of the Society of Antiquaries of Scotland. 91, (Nov. 1960), 61–77. DOI:https://doi.org/10.9750/PSAS.091.61.77.