Encyclopedias
Archer, Gleason. New International Encyclopedia of Bible Difficulties. Grand Rapids: Zondervan, 2001.
Di Bernardino, Angelo, ed. Encyclopedia of the Early Church. 2 vols. Translated by A. Wolford. Cambridge: James Clarke & Co., 1992.
Ferguson, Everett, ed. Encyclopedia of Early Christianity. New York, NY: Garland Publishing, Inc., 1990.
Fitzgerald, Allan, ed. Augustine Through the Ages: An Encyclopedia. Grand Rapids, MI: William B. Eerdmans Publishing, 1999.
Hillerbrand, Hans, ed. The Oxford Encyclopedia of the Reformation. 4 vols.Oxford: Oxford University Press, 1996.
