| Author | Titles | | 1.
| Arnoldi, F. Negri | 1 | | 2.
| Arnoldi, Mary Jo | 2 | | 3.
| Arnolfini (Bristol, Grã-Bretanha) | 7 | | 4.
| Arnone, Angela | 1 | | 5.
| Arnoso, 1o Conde de, 1855-1911 | 0 | | 6.
| Author is: Arnoso, Conde de, 1855-1911 | 17 | | 7.
| Arnoso, 3o Conde de, 1880-1925 | 0 | | 8.
| Author is: Arnoso, Vicente, 1880-1925 | 6 | | 9.
| Arnoso, Conde de, 1855-1911 | 17 | | 10.
| Arnoso, Vicente, 1880-1925 | 6 | | 11.
| Arnott, Bruce | 2 | | 12.
| Arnould, Ana Paula Rebelo Correia, 1959- | 0 | | 13.
| Author is: Correia, Ana Paula Rebelo, 1959- | 18 |
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