15 books
The Throne of the Fisherman Built by the Carpenter's Son, the Root, the Bond, and the Crown of Christendom
Sermons on the Epistle to the Romans, and Others
The See of St. Peter; The Rock of the Church, the Source of Jurisdiction, and the Centre of Unity
Per Crucem Ad Lucem (Volume 2); The Result of a Life
Per Crucem Ad Lucem (Volume 1); The Result of a Life
The Formation of Christendom (Volume 3)
The Formation of Christendom (Volume 2)
The Formation of Christendom (Volume 7)
The Formation of Christendom (Volume 4)
The Formation of Christendom (Volume 8)
The Formation of Christendom (Volume 1)
The Formation of Christendom (Volume 6)
The Holy See and the Wandering of the Nations from St. Leo I to St. Gregory I (Volume 6)
The Throne of the Fisherman; The Root, the Bond, and the Crown of Christendom
Peter's Rock in Mohammed's Flood (Volume 7)