| Author | Titles | | 1.
| Romero, Luis | 1 | | 2.
| Romero, Manuel | 2 | | 3.
| Romero Pascual, Cristobal | 1 | | 4.
| Romero Pedro G., 1964- | 3 | | 5.
| Romero, Sílvio, 1851-1914 | 7 | | 6.
| Romero-Pose, Eugenio | 1 | | 7.
| Rometti, Julia | 2 | | 8.
| Romeu, João José Malato e | 1 | | 9.
| Romey, Charles, 1804-1874 | 2 | | 10.
| Romeyer, Blaise | 1 |
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