| Author | Titles | | 1.
| Postle, Martin, 19--?- | 17 | | 2.
| Posto de Turismo (Matosinhos, Portugal) | 2 | | 3.
| Posto de Turismo (Póvoa de Varzim, Portugal) | 1 | | 4.
| Potapova, Nina | 1 | | 5.
| Potau, Manuel Ribas | 1 | | 6.
| Potay, Corinne | 1 | | 7.
| Poteiro, António, 1925- | 2 | | 8.
| Potemkin, Vladimir | 1 | | 9.
| Potes, Diogo | 2 | | 10.
| Potes, Ray | 1 |
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