BR- Christianity.
BT98-180- Doctrinal Theology - God.
BT198-590- Doctrinal Theology - Christology.
BT595-680- Doctrinal Theology - Mary, Mother of Jesus. Mariology.
BT695-749- Doctrinal Theology - Creation.
BT750-81- Doctrinal Theology - Salvation.
BT819-891- Doctrinal Theology - Eschatology.
BT1029-1040- Doctrinal Theology - Catechisms.
BT1095-1255- Doctrinal Theology - Apologetics.
BX1746-1755- Catholic Church - Theology. Doctrine. Dogmatics.
BX1970-2175- Catholic Church - Liturgy and ritual.
BX2200-2292- Catholic Church - Sacraments.
The HarperCollins Encyclopedia of Catholicism by 
New Catholic Encyclopedia by 
Our Sunday Visitor's Encyclopedia of Catholic Doctrine by 
A to Z Guide to the Catholic Faith by 
The Cambridge Companion to Christian Doctrine by 
The Craft of Theology by 
