| Author | Titles | | 1.
| Ruiz Maldonado, Margarita | 2 | | 2.
| Ruiz Manent, Jaime | 1 | | 3.
| Ruiz Mantilla, Guillermo | 1 | | 4.
| Ruiz Mantilla, Jesús | 1 | | 5.
| Ruiz Mateos, Gerardo | 1 | | 6.
| Ruiz, Mimoso | 1 | | 7.
| Ruiz Morales, José Miguel | 3 | | 8.
| Ruiz Olabuénaga, J. I., 1929-2014 | 0 | | 9.
| Author is: Ruiz Olabuénaga, José Ignacio, 1929-2014 | 1 | | 10.
| Ruiz Olabuénaga, J. Ignacio, 1929-2014 | 0 | | 11.
| Author is: Ruiz Olabuénaga, José Ignacio, 1929-2014 | 1 | | 12.
| Ruiz Olabuénaga, José I., 1929-2014 | 0 | | 13.
| Author is: Ruiz Olabuénaga, José Ignacio, 1929-2014 | 1 |
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