| Author | Titles | | 1.
| Arriba Guerri, Mercedes López | 2 | | 2.
| Arribas, Alfredo, 1954- | 2 | | 3.
| Arribas, António | 2 | | 4.
| Arriegas, Artur | 1 | | 5.
| Arrieta, Rafael Alberto | 1 | | 6.
| Arrifano, Pedro | 1 | | 7.
| Arrighi, Antonio | 1 | | 8.
| Arrighi, Antonio, 1687-1776 | 1 | | 9.
| Arrigoni, Luisa | 1 | | 10.
| Arrigoni, Massimo | 1 |
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