The Breiddin Hillfort: a later prehistoric settlement in the Welsh March… by Musson, Chris R., Britnell, W.J, Smith, A.G., (Alan Gilbert), Casey, P.J., (Patrick John), Council for British Archaeology, Cadw : Welsh Historic Monuments fromResearch report 0 Type: Book
Excavations at Segontium (Caernarfon) Roman fort, 1975-1979 by Allason-Jones, Lindsay, Casey, P.J., (Patrick John), Evans, J., (Jeremy), Davies, Jeffrey L. fromResearch report 0 Type: Book
