Encyclopedias, Almanacs, Transcripts, and Maps
- Apor, Vilmos, Bl.
- Aporia
- Apostles of Jesus
- Apostles' Creed
- Apostles, Iconography of
- Apostleship of Prayer
- Apostleship of the Sea
- Apostolate and Spiritual Life
- Apostolic Blessing
- Apostolic Camera
- Apostolic Church Order
- Apostolic Constitution
- Apostolic Delegation in the U.S.
- Apostolic Exhortation
- Apostolic Faith
- Apostolic Fathers
- Apostolic Pentecostals
- Apostolic Pentecostals
- Apostolic See
- Apostolicae Curae