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Catalogue of seals in the National Museum of Wales / Amgueddfeydd ac orielau Cenedlaethol Cymru (1998)
Goldcliff Priory (1978)
The White Monks of Dore, 1147-1536 (1966)
White monks in Gwent and the border (1976)
The Welsh Cistercians (1984)
The Welsh Cistercians (1984)