| Author | Titles | 1.
| Viegas, Alberto, 1932- | 1 | 2.
| Viegas, Albie | 1 | 3.
| Viegas, Ana | 2 | 4.
| Viegas, Ana Maria | 8 | 5.
| Viegas, António dos Santos | 1 | 6.
| Viegas, Artur, pseud. | 8 | 7.
| Viegas, Catarina | 1 | 8.
| Viegas, Cristina, 1961- | 2 | 9.
| Viegas, Filipe | 1 | 10.
| Viegas, Francisco José, 1962- | 2 |
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