Liber sacramentorum Romanae Aeclesiae ordinis anni circuli (Cod. Vat. Reg. lat. 316/ Paris Bibl. Nat. 7193, 41/56), (Sacramentarium Gelasianum) - Eizenhöfer, Leo, 1907-1981; Mohlberg, Leo Cunibert, 1878-1963; Siffrin, Petrus, 1888- (Roma : Herder, 1968)