| Author | Titles | 1.
| Los Ríos Martínez, Esperanza de | 1 | 2.
| Rios, Miguel | 5 | 3.
| Rios, Niza | 1 | 4.
| Rios, Ricardo de los | 1 | 5.
| Rios, Roberto Álvarez, 1932- | 1 | 6.
| Rios Ruiz, Manuel | 1 | 7.
| Riotor, Léon, 1865-1946 | 2 | 8.
| Riottot El-Habib, Béatrice | 1 | 9.
| Riou, 1833-1900 | 3 | 10.
| Riou, Edouard, 1833-1900 | 0 | 11.
| Author is: Riou, 1833-1900 | 3 |
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