| Author | Titles | | 1.
| Avia Peña, Amália | 1 | | 2.
| Aviaplan AS | 1 | | 3.
| Avice, Jean-Paul | 1 | | 4.
| The Avicultural Society (Grã-Bretanha) | 1 | | 5.
| Avida Dollares Galleria d'Arte (Milão, Itália) | 1 | | 6.
| Avieno, Rufo Festo | 7 | | 7.
| Avigdor, Elim Henry d', 1841-1895 | 0 | | 8.
| Author is: Wanderer, pseud. | 1 | | 9.
| Ávila, Affonso, 1928- | 2 | | 10.
| Ávila, Afonso | 6 | | 11.
| Ávila, Alin | 1 |
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