| Author | Titles | | 1.
| Quaquaro, Benedetto | 25 | | 2.
| Quarante, Danielle, 1938- | 2 | | 3.
| Quarantelli, Ezio | 1 | | 4.
| Quardon, Françoise, 1961- | 1 | | 5.
| Quarenghi, Giusi | 1 | | 6.
| Quaresma, Abílio | 2 | | 7.
| Quaresma, António dos Santos | 1 | | 8.
| Quaresma, António Martins, 1945- | 2 | | 9.
| Quaresma, Eugénia T.J. Costa | 1 | | 10.
| Quaresma, Isabel, 1962- | 2 |
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