| Author | Titles | | 1.
| Portocarrero, Albano, 1898-1952 | 3 | | 2.
| Portocarrero, Albano de Almeida Coutinho, 1898-1952 | 0 | | 3.
| Author is: Portocarrero, Albano, 1898-1952 | 3 | | 4.
| Portocarrero, Gustavo, 1974- | 2 | | 5.
| Portocarrero, Maria Luísa | 1 | | 6.
| Portocarrero y Guzmán, Pedro | 1 | | 7.
| Portoghesi, Paolo, 1931-2023 | 23 | | 8.
| Porto-Riche, Georges de, 1849-1930 | 2 | | 9.
| Port-Petit, Michel | 1 | | 10.
| Portucale | 1 | | 11.
| Portucalense Editora (Porto) | 2 |
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