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