Pelagii papae Epistulae quae supersunt (556-561) / collexit, notulis historicis adornavit Dom Pius M. Gassó ; ad fidem codicum recensuit, praefatione et indicibus instruxit Dom Columba M. Battlle. - Pelagius PP. I, m. 560. (OLS)http://pul/name/2634; Gassò, Pius M. (OLS)http://pul/name/17946; Batlle, Columba M. (Columba María), 1926- (OLS)http://pul/name/17947 (in abbadia Montissserrati, 1956)
Index: p. [245]-260.
Bibliographie: p. [xiii]-xix.
Photocopie.