| Author | Titles | 1.
| Orta, Lucy | 1 | 2.
| Ortega, Aaron Escobedo | 1 | 3.
| Ortega, Ana Teresa, 1952- | 1 | 4.
| Ortega, António, 19--?- | 1 | 5.
| Ortega, Beatriz | 5 | 6.
| Ortega, Carlos | 17 | 7.
| Ortega Chapel, Pilar | 1 | 8.
| Ortega, Cristina | 6 | 9.
| Ortega, Damián, 1967- | 1 | 10.
| Ortega, Eduardo | 5 |
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