| Author | Titles | | 1.
| Ruiz Hernando, Jose Antonio | 1 | | 2.
| Ruiz, Javier | 1 | | 3.
| Ruiz, José | 4 | | 4.
| Ruiz, José, 1968- | 1 | | 5.
| Ruiz, José Carlos | 1 | | 6.
| Ruiz, José G. | 1 | | 7.
| Ruiz, José Ignacio, 1929-2014 | 0 | | 8.
| Author is: Ruiz Olabuénaga, José Ignacio, 1929-2014 | 1 | | 9.
| Ruiz, Juan | 1 | | 10.
| Ruiz, Juan Francisco | 1 | | 11.
| Ruiz Maldonado, Margarita | 2 |
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