| Author | Titles | | 1.
| Ortiz, Manuel | 4 | | 2.
| Ortiz Monasterio, Pablo, 1952- | 4 | | 3.
| Ortiz Muñoz, Luis | 1 | | 4.
| Ortiz Oderigo, Néstor R. | 1 | | 5.
| Ortiz Remley, Mateo | 1 | | 6.
| Ortiz, Rubén | 1 | | 7.
| Ortiz y Sanz, Jose | 1 | | 8.
| Ortiz y Vierge, Daniel Urrabieta, 1851-1904 | 0 | | 9.
| Author is: Vierge, Daniel, 1851-1904 | 2 | | 10.
| Ortiz-Echagüe, Javier | 1 | | 11.
| Ortiz-Echagüe, José 186-1982 | 1 |
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