| Author | Titles | | 1.
| Arruda, Tereza de | 4 | | 2.
| Arruda, Victor, 1947- | 0 | | 3.
| Author is: Arruda, Vitor, 1947- | 1 | | 4.
| Arruda, Virgílio | 11 | | 5.
| Arruda, Vitor, 1947- | 1 | | 6.
| Arruela, José de, 1881-1960 | 17 | | 7.
| Arruela, Maria José Pinheiro de Melo d' | 1 | | 8.
| Arruella, José de 1881-1960 | 1 | | 9.
| ARS - Arquitectos (Porto, Portugal) | 1 | | 10.
| Ars Baltica Triennial of Photographic Art, (Pori, Finlândia), 4 | 1 | | 11.
| Ars Classica (Firma) | 5 |
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