Roman gates, Caerleon : the 'Roman Gates` site in the Fortress of the Second Augustan Legion at Caerleon, Gwent, the excavations of the Roman buildings and evidence for early medieval activity /
Evans, D. R.
Metcalf, V. M.
Allen, D.
Glamorgan-Gwent Archaeological Trust.
Oxford : Oxbow Books ; Swansea : Glamorgan-Gwent Archaeological Trust,
1992.