| Author | Titles | | 1.
| Apollinaire, Guillaume, pseud. | 20 | | 2.
| Apollinaire, pseud. | 0 | | 3.
| Author is: Apollinaire, Guillaume, pseud. | 20 | | 4.
| Apollinaris de Kostrowitzky, Wilhelm, 1880-1918 | 0 | | 5.
| Author is: Apollinaire, Guillaume, pseud. | 20 | | 6.
| Apolloni, Ignacio | 1 | | 7.
| Apollonio, Dario | 1 | | 8.
| Apollonio, Umbro | 10 | | 9.
| Apolónio de Rodes, ca 237-186 a.C. | 2 | | 10.
| APOM (Cartaxo, Portugal) | 0 | | 11.
| Author is: Associação Portuguesa de Museologia (Cartaxo, Portugal) | 8 | | 12.
| APOM (Pontével, Cartaxo, Portugal) | 0 | | 13.
| Author is: Associação Portuguesa de Museologia (Cartaxo, Portugal) | 8 | | 14.
| Aponte-Parés, Luis | 1 |
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