| Author | Titles | | 1.
| Portuguese Trade Commission | 1 | | 2.
| Portulez, Rui | 1 | | 3.
| Portuondo y Barceló, Antonio, 1845-1920 | 1 | | 4.
| Portús Pérez, Javier | 7 | | 5.
| Portzamparc, Christian Urvoy de, 1944- | 11 | | 6.
| Porzio, Francesco | 1 | | 7.
| Pos, Arie | 3 | | 8.
| Posada, José, 1852-1913 | 0 | | 9.
| Author is: Posada, José Guadalupe, 1852-1913 | 3 | | 10.
| Posada, José Guadalupe, 1852-1913 | 3 | | 11.
| Posada Kubissa, Teresa | 1 |
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