| Author | Titles | | 1.
| Portalupi, Mario | 1 | | 2.
| Portas, Catarina, 1969- | 3 | | 3.
| Portas, Clara, 19- | 2 | | 4.
| Portas, Mariana | 3 | | 5.
| Portas, Miguel, 1958-2012 | 1 | | 6.
| Portas, Miguel de Sacadura Cabral, 1958-2012 | 0 | | 7.
| Author is: Portas, Miguel, 1958-2012 | 1 | | 8.
| Portas, Miguel Sacadura Cabral, 1958-2012 | 0 | | 9.
| Author is: Portas, Miguel, 1958-2012 | 1 | | 10.
| Portas, Nuno, 1934- | 111 | | 11.
| Portas, Nuno Rodrigo Martins, 1934- | 0 | | 12.
| Author is: Portas, Nuno, 1934- | 111 | | 13.
| Portassi, Maximo | 1 |
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