| Author's List |
| title | creator | language | description | tableOfContents | contributor | subject | created |
| The Purpose of the Papacy | Vaughan, John S. (John Stephen), 1853-1925 | en | 2005-07-08 | ||||
| Pius IX. And His Time | Dawson, Æneas MacDonell, 1810-1894 | en | Pius IX, Pope, 1792-1878; Papacy -- History | 2009-06-17 |