Norberg, Dag A Corpvs Christianorvm Series Latina CXL A S.Gregorii Magni: Registrvm Epistvlarvm Libri VIII-XIV, Appendix - Tvrnholti Typographi Brepols Editores Pontificii 1982 - 1183p - Corpvs Christianorvm Series Latina ; 198200LATGPS1 . includes index and biblioraphy ISBN: 100 Dewey Class. No.: E83 / C817