Coelestini III. romani pontificis epistolae et privilegia ordine chronologico digesta : accedit Thomae cisterciensis monachi et Joannis Algrini, . .. commentarium in cantica : tomus unicus - Coelestine III, Pope, approximately 1106-1198 (J.-P. Migne, 1855, 1855)
At head of title: Saeculum 12.