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Piggott, C., Steer, K. and Orr, M. 1951. The Iron Age Settlement at Hayhope Knowe, Roxburghshire: Excavations, 1949. Proceedings of the Society of Antiquaries of Scotland. 83, (Nov. 1951), 45-67. DOI:https://doi.org/10.9750/PSAS.083.45.67.