| Author | Titles | | 1.
| Azaruja, João Sebastião Cardoso | 1 | | 2.
| Azcárate, Gumersindo de | 1 | | 3.
| Azcárate, José María de | 6 | | 4.
| Azcoaga, E., 1912-1985 | 0 | | 5.
| Author is: Azcoaga, Enrique, 1912-1985 | 5 | | 6.
| Azcoaga, Enrique, 1912-1985 | 5 | | 7.
| Azcoaga Ibas, Enrique, 1912-1985 | 0 | | 8.
| Author is: Azcoaga, Enrique, 1912-1985 | 5 | | 9.
| Azcue Brea, Leticia | 3 | | 10.
| Azeiteiro, Ulisses | 2 | | 11.
| Azéma, Léon, 1888-1978 | 2 | | 12.
| Azenha, António | 1 |
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