| Author | Titles | | 1.
| Ralha, Eduardo Marques | 1 | | 2.
| Ralha, Ivone, 1958- | 3 | | 3.
| Ralha, Jorge | 1 | | 4.
| Ralha, Luís, 1935-2008 | 5 | | 5.
| Ralha, Luís Fernando Ferreira, 1935- | 0 | | 6.
| Author is: Ralha, Luís, 1935-2008 | 5 | | 7.
| Ralha, Teresa | 1 | | 8.
| Ralleva, Remigio | 1 | | 9.
| Ralph Johnson-Perkins & Will | 1 | | 10.
| RAM, 1976- | 0 | | 11.
| Author is: RAM (nome de artista) | 1 | | 12.
| RAM. Hafnarhús | 0 | | 13.
| Author is: Reykjavík. Art Museum. Hafnarhús | 1 |
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