| Author | Titles | 1.
| Ruiz Morales, José Miguel | 3 | 2.
| Ruiz Olabuénaga, J. I., 1929-2014 | 0 | 3.
| Author is: Ruiz Olabuénaga, José Ignacio, 1929-2014 | 1 | 4.
| Ruiz Olabuénaga, J. Ignacio, 1929-2014 | 0 | 5.
| Author is: Ruiz Olabuénaga, José Ignacio, 1929-2014 | 1 | 6.
| Ruiz Olabuénaga, José I., 1929-2014 | 0 | 7.
| Author is: Ruiz Olabuénaga, José Ignacio, 1929-2014 | 1 | 8.
| Ruiz Olabuénaga, José Ignacio, 1929-2014 | 1 | 9.
| Ruiz, Pablo, 1881-1973 | 0 | 10.
| Author is: Picasso, Pablo, 1881-1973 | 160 | 11.
| Ruiz, Pedro | 3 | 12.
| Ruiz Pérez, Pedro | 1 | 13.
| Ruiz Pipó, Manolo, 1929- | 1 | 14.
| Ruiz Planes, Tomás | 1 |
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