@Misc{BVMC:1026842, author = {Iglesia Católica}, title = {De Officio Immaculatae Conceptionis Beatae Mariae. In Sabbatho recitando}, url = {https://www.cervantesvirtual.com/obra/de-officio-immaculatae-conceptionis-beatae-mariae-in-sabbatho-recitando-1026842} }