FLETCHER, R. A.: The Episcopate in the Kingdom of Leon in the Twelfth Century (Oxford Historical Monographs; Oxford, University Press, 1978), X-288 págs.
García y García, Antonio (1979). FLETCHER, R. A.: The Episcopate in the Kingdom of Leon in the Twelfth Century (Oxford Historical Monographs; Oxford, University Press, 1978), X-288 págs.. ANUARIO DE HISTORIA DEL DERECHO ESPAÑOL . pp. 755-759.
