| Author | Titles | | 1.
| Águas, Sofia | 1 | | 2.
| Aguayo, Fermin, 1926-1977 | 1 | | 3.
| Agudelo, Lucas, 1977- | 1 | | 4.
| Agudo, Anacleto Fernandes | 1 | | 5.
| Agudo, Fernandes, 1877-1949 | 3 | | 6.
| Agudo, Francisco Dias, 19--?- | 1 | | 7.
| Águeda. Câmara Municipal | 1 | | 8.
| Aguer, Montse | 1 | | 9.
| Agüera, Anna | 1 | | 10.
| Aguëro Ormaza, Juan Andrés Gómez de | 1 |
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