| Author | Titles | 1.
| Porter, Tom | 2 | 2.
| Porter, Venetia | 3 | 3.
| Porter, Vicki | 1 | 4.
| Portera Sánchez, Alberto | 1 | 5.
| Porterfield, Todd | 1 | 6.
| Portes, Florence | 1 | 7.
| Portet, Patrick J-M | 1 | 8.
| Portevin, Catherine | 1 | 9.
| Porthas, pseud. | 0 | 10.
| Author is: Arroio, António, 1856-1934 | 27 | 11.
| Pórtico ( Lisboa, Portugal ) | 0 | 12.
| Author is: Galeria Pórtico (Lisboa, Portugal) | 47 |
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