LECLERCQ, H. "Lucifer of Cagliari." Catholic Encyclopedia (Volume IX, pg. 410). Robert Appleton Company. New York, 1907. Available online <"Lucifer of Cagliari - Original Catholic Encyclopedia". Archived from the original on 24 December 2013. Retrieved 28 December 2013.>.
BENIGNI, U. "Cagliari, Archdiocese of." Catholic Encyclopedia (Volume III, pp. 139). Robert Appleton Company. New York, 1907. Available online <"Archdiocese of Cagliari - Original Catholic Encyclopedia". Archived from the original on 28 December 2013. Retrieved 28 December 2013.>.
ccel.org
Schaff, Philip. "Principal Works of St. Jerome", Select Library of the Nicene and Post-Nicene Fathers of the Christian Church (Volume VI, pg. 319). Second Series. Christian Literature Publishing Co., New York, 1892. Available online through The Christian Classics Ethereal Library <http://www.ccel.org/ccel/schaff/npnf206/Page_319.html>.
LECLERCQ, H. "Lucifer of Cagliari." Catholic Encyclopedia (Volume IX, pg. 410). Robert Appleton Company. New York, 1907. Available online <"Lucifer of Cagliari - Original Catholic Encyclopedia". Archived from the original on 24 December 2013. Retrieved 28 December 2013.>.
BENIGNI, U. "Cagliari, Archdiocese of." Catholic Encyclopedia (Volume III, pp. 139). Robert Appleton Company. New York, 1907. Available online <"Archdiocese of Cagliari - Original Catholic Encyclopedia". Archived from the original on 28 December 2013. Retrieved 28 December 2013.>.