| Author | Titles | 1.
| Percival, Jack | 2 | 2.
| Percival, Melissa | 1 | 3.
| Percival, Victor | 1 | 4.
| Percy, Ann | 1 | 5.
| Percy, Christopher Vane | 2 | 6.
| Percy Thomas Partnership (Firma de Arquitectura) | 1 | 7.
| Percy, William | 1 | 8.
| Perdices, José Álvaro, 1971- | 3 | 9.
| Perdigão, Álvaro, 1910-1994 | 40 | 10.
| Perdigão, António Soares Marques, 1932- | 0 | 11.
| Author is: Perdigão, Marques, 1932- | 3 |
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