Author: Ecclesia Catholica - GRADUALE TRIPLEX :
Title: Graduale Triplex seu Graduale Romanum Pauli PP. VI cura recognitum a rhythmicis signis a Solemensibus Monachis ornatum. Neumis Laudunensibus (Cod. 239) et Sangallensibus (Codicum San Gallensis 359 et Einsidelensis 121 nunc auctum.
Description: .: Regensburg, Conbrio (Libreria Editrice Vaticana), 2011, format in-8°, 918 pp. Bound in publisher's blue imitation leather. Gilt title on front cover and spine. With small owner label on fly leaf, but still a mint copy. .

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